minimum_liars_count - Expert Level: conceptual clarity minimum_liars_count EXPERT

This skill evaluation ⚡ worksheet focuses on minimum_liars_count - a key topic in Binary Logic. You'll solve 20 expert-level problems (Worksheet 9 of 10). The primary focus is on conceptual clarity. Master minimum_liars_count ssc cgl, minimum_liars_count reasoning tricks, and fast minimum_liars_count solving through systematic practice.

📝 Worksheet 9 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Expert level

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Your progress through minimum_liars_count
Worksheet 9 of 10 (88% complete)

Question 1

Meera: 'At least 2 of us are liars' Rahul: 'At most 3 of us are liars' Kiran: 'Exactly 2 of us are liars' Divya: 'Ravi is a truth-teller' Ravi: 'Meera is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Meera: L ≥ 2
2. Rahul: L ≤ 3
3. Kiran: L = 2
4. Divya: Ravi is truth-teller
5. Ravi: Meera is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Meera is liar - if true, then Meera is liar.
Statement 4 says Ravi is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Meera would be liar.
Then statement 5 (Ravi says 'Meera is liar') would be TRUE.
So Ravi would be truth-teller. Then statement 4 (Divya says 'Ravi is truth-teller') would be TRUE.
So Divya would be truth-teller. That gives at least 2 truth-tellers (Ravi, Divya) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 2

Deepa: 'At least 2 of us are liars' Kiran: 'At most 3 of us are liars' Neha: 'Exactly 2 of us are liars' Divya: 'Vikram is a truth-teller' Vikram: 'Deepa is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Deepa: L ≥ 2
2. Kiran: L ≤ 3
3. Neha: L = 2
4. Divya: Vikram is truth-teller
5. Vikram: Deepa is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Deepa is liar - if true, then Deepa is liar.
Statement 4 says Vikram is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Deepa would be liar.
Then statement 5 (Vikram says 'Deepa is liar') would be TRUE.
So Vikram would be truth-teller. Then statement 4 (Divya says 'Vikram is truth-teller') would be TRUE.
So Divya would be truth-teller. That gives at least 2 truth-tellers (Vikram, Divya) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 3

Deepa: 'At least 2 of us are liars' Sunil: 'At most 3 of us are liars' Vikram: 'Exactly 2 of us are liars' Rohan: 'Sanjay is a truth-teller' Sanjay: 'Deepa is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Deepa: L ≥ 2
2. Sunil: L ≤ 3
3. Vikram: L = 2
4. Rohan: Sanjay is truth-teller
5. Sanjay: Deepa is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Deepa is liar - if true, then Deepa is liar.
Statement 4 says Sanjay is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Deepa would be liar.
Then statement 5 (Sanjay says 'Deepa is liar') would be TRUE.
So Sanjay would be truth-teller. Then statement 4 (Rohan says 'Sanjay is truth-teller') would be TRUE.
So Rohan would be truth-teller. That gives at least 2 truth-tellers (Sanjay, Rohan) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 4

Amit: 'At least 2 of us are liars' Rahul: 'At most 3 of us are liars' Pooja: 'Exactly 2 of us are liars' Neha: 'Anita is a truth-teller' Anita: 'Amit is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Amit: L ≥ 2
2. Rahul: L ≤ 3
3. Pooja: L = 2
4. Neha: Anita is truth-teller
5. Anita: Amit is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Amit is liar - if true, then Amit is liar.
Statement 4 says Anita is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Amit would be liar.
Then statement 5 (Anita says 'Amit is liar') would be TRUE.
So Anita would be truth-teller. Then statement 4 (Neha says 'Anita is truth-teller') would be TRUE.
So Neha would be truth-teller. That gives at least 2 truth-tellers (Anita, Neha) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 5

Gaurav: 'At least 2 of us are liars' Harsha: 'At most 3 of us are liars' Anita: 'Exactly 2 of us are liars' Priya: 'Vikram is a truth-teller' Vikram: 'Gaurav is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Gaurav: L ≥ 2
2. Harsha: L ≤ 3
3. Anita: L = 2
4. Priya: Vikram is truth-teller
5. Vikram: Gaurav is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Gaurav is liar - if true, then Gaurav is liar.
Statement 4 says Vikram is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Gaurav would be liar.
Then statement 5 (Vikram says 'Gaurav is liar') would be TRUE.
So Vikram would be truth-teller. Then statement 4 (Priya says 'Vikram is truth-teller') would be TRUE.
So Priya would be truth-teller. That gives at least 2 truth-tellers (Vikram, Priya) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 6

Amit: 'At least 2 of us are liars' Anita: 'At most 3 of us are liars' Deepa: 'Exactly 2 of us are liars' Manoj: 'Leena is a truth-teller' Leena: 'Amit is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Amit: L ≥ 2
2. Anita: L ≤ 3
3. Deepa: L = 2
4. Manoj: Leena is truth-teller
5. Leena: Amit is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Amit is liar - if true, then Amit is liar.
Statement 4 says Leena is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Amit would be liar.
Then statement 5 (Leena says 'Amit is liar') would be TRUE.
So Leena would be truth-teller. Then statement 4 (Manoj says 'Leena is truth-teller') would be TRUE.
So Manoj would be truth-teller. That gives at least 2 truth-tellers (Leena, Manoj) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 7

Deepa: 'At least 2 of us are liars' Rohan: 'At most 3 of us are liars' Priya: 'Exactly 2 of us are liars' Harsha: 'Ravi is a truth-teller' Ravi: 'Deepa is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Deepa: L ≥ 2
2. Rohan: L ≤ 3
3. Priya: L = 2
4. Harsha: Ravi is truth-teller
5. Ravi: Deepa is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Deepa is liar - if true, then Deepa is liar.
Statement 4 says Ravi is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Deepa would be liar.
Then statement 5 (Ravi says 'Deepa is liar') would be TRUE.
So Ravi would be truth-teller. Then statement 4 (Harsha says 'Ravi is truth-teller') would be TRUE.
So Harsha would be truth-teller. That gives at least 2 truth-tellers (Ravi, Harsha) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 8

Sanjay: 'At least 2 of us are liars' Priya: 'At most 3 of us are liars' Rohan: 'Exactly 2 of us are liars' Pooja: 'Rahul is a truth-teller' Rahul: 'Sanjay is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Sanjay: L ≥ 2
2. Priya: L ≤ 3
3. Rohan: L = 2
4. Pooja: Rahul is truth-teller
5. Rahul: Sanjay is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Sanjay is liar - if true, then Sanjay is liar.
Statement 4 says Rahul is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Sanjay would be liar.
Then statement 5 (Rahul says 'Sanjay is liar') would be TRUE.
So Rahul would be truth-teller. Then statement 4 (Pooja says 'Rahul is truth-teller') would be TRUE.
So Pooja would be truth-teller. That gives at least 2 truth-tellers (Rahul, Pooja) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 9

Harsha: 'At least 2 of us are liars' Rahul: 'At most 3 of us are liars' Ravi: 'Exactly 2 of us are liars' Sunil: 'Meera is a truth-teller' Meera: 'Harsha is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Harsha: L ≥ 2
2. Rahul: L ≤ 3
3. Ravi: L = 2
4. Sunil: Meera is truth-teller
5. Meera: Harsha is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Harsha is liar - if true, then Harsha is liar.
Statement 4 says Meera is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Harsha would be liar.
Then statement 5 (Meera says 'Harsha is liar') would be TRUE.
So Meera would be truth-teller. Then statement 4 (Sunil says 'Meera is truth-teller') would be TRUE.
So Sunil would be truth-teller. That gives at least 2 truth-tellers (Meera, Sunil) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 10

Ravi: 'At least 2 of us are liars' Priya: 'At most 3 of us are liars' Amit: 'Exactly 2 of us are liars' Pooja: 'Divya is a truth-teller' Divya: 'Ravi is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Ravi: L ≥ 2
2. Priya: L ≤ 3
3. Amit: L = 2
4. Pooja: Divya is truth-teller
5. Divya: Ravi is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Ravi is liar - if true, then Ravi is liar.
Statement 4 says Divya is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Ravi would be liar.
Then statement 5 (Divya says 'Ravi is liar') would be TRUE.
So Divya would be truth-teller. Then statement 4 (Pooja says 'Divya is truth-teller') would be TRUE.
So Pooja would be truth-teller. That gives at least 2 truth-tellers (Divya, Pooja) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 11

Amit: 'At least 2 of us are liars' Pooja: 'At most 3 of us are liars' Farhan: 'Exactly 2 of us are liars' Kiran: 'Anita is a truth-teller' Anita: 'Amit is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Amit: L ≥ 2
2. Pooja: L ≤ 3
3. Farhan: L = 2
4. Kiran: Anita is truth-teller
5. Anita: Amit is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Amit is liar - if true, then Amit is liar.
Statement 4 says Anita is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Amit would be liar.
Then statement 5 (Anita says 'Amit is liar') would be TRUE.
So Anita would be truth-teller. Then statement 4 (Kiran says 'Anita is truth-teller') would be TRUE.
So Kiran would be truth-teller. That gives at least 2 truth-tellers (Anita, Kiran) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 12

Divya: 'At least 2 of us are liars' Anita: 'At most 3 of us are liars' Pooja: 'Exactly 2 of us are liars' Leena: 'Meera is a truth-teller' Meera: 'Divya is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Divya: L ≥ 2
2. Anita: L ≤ 3
3. Pooja: L = 2
4. Leena: Meera is truth-teller
5. Meera: Divya is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Divya is liar - if true, then Divya is liar.
Statement 4 says Meera is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Divya would be liar.
Then statement 5 (Meera says 'Divya is liar') would be TRUE.
So Meera would be truth-teller. Then statement 4 (Leena says 'Meera is truth-teller') would be TRUE.
So Leena would be truth-teller. That gives at least 2 truth-tellers (Meera, Leena) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 13

Divya: 'At least 2 of us are liars' Rahul: 'At most 3 of us are liars' Sunil: 'Exactly 2 of us are liars' Manoj: 'Leena is a truth-teller' Leena: 'Divya is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Divya: L ≥ 2
2. Rahul: L ≤ 3
3. Sunil: L = 2
4. Manoj: Leena is truth-teller
5. Leena: Divya is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Divya is liar - if true, then Divya is liar.
Statement 4 says Leena is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Divya would be liar.
Then statement 5 (Leena says 'Divya is liar') would be TRUE.
So Leena would be truth-teller. Then statement 4 (Manoj says 'Leena is truth-teller') would be TRUE.
So Manoj would be truth-teller. That gives at least 2 truth-tellers (Leena, Manoj) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 14

Harsha: 'At least 2 of us are liars' Anita: 'At most 3 of us are liars' Pooja: 'Exactly 2 of us are liars' Divya: 'Sunil is a truth-teller' Sunil: 'Harsha is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Harsha: L ≥ 2
2. Anita: L ≤ 3
3. Pooja: L = 2
4. Divya: Sunil is truth-teller
5. Sunil: Harsha is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Harsha is liar - if true, then Harsha is liar.
Statement 4 says Sunil is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Harsha would be liar.
Then statement 5 (Sunil says 'Harsha is liar') would be TRUE.
So Sunil would be truth-teller. Then statement 4 (Divya says 'Sunil is truth-teller') would be TRUE.
So Divya would be truth-teller. That gives at least 2 truth-tellers (Sunil, Divya) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 15

Rahul: 'At least 2 of us are liars' Gaurav: 'At most 3 of us are liars' Farhan: 'Exactly 2 of us are liars' Divya: 'Amit is a truth-teller' Amit: 'Rahul is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Rahul: L ≥ 2
2. Gaurav: L ≤ 3
3. Farhan: L = 2
4. Divya: Amit is truth-teller
5. Amit: Rahul is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Rahul is liar - if true, then Rahul is liar.
Statement 4 says Amit is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Rahul would be liar.
Then statement 5 (Amit says 'Rahul is liar') would be TRUE.
So Amit would be truth-teller. Then statement 4 (Divya says 'Amit is truth-teller') would be TRUE.
So Divya would be truth-teller. That gives at least 2 truth-tellers (Amit, Divya) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 16

Farhan: 'At least 2 of us are liars' Rohan: 'At most 3 of us are liars' Kiran: 'Exactly 2 of us are liars' Sanjay: 'Divya is a truth-teller' Divya: 'Farhan is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Farhan: L ≥ 2
2. Rohan: L ≤ 3
3. Kiran: L = 2
4. Sanjay: Divya is truth-teller
5. Divya: Farhan is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Farhan is liar - if true, then Farhan is liar.
Statement 4 says Divya is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Farhan would be liar.
Then statement 5 (Divya says 'Farhan is liar') would be TRUE.
So Divya would be truth-teller. Then statement 4 (Sanjay says 'Divya is truth-teller') would be TRUE.
So Sanjay would be truth-teller. That gives at least 2 truth-tellers (Divya, Sanjay) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 17

Divya: 'At least 2 of us are liars' Pooja: 'At most 3 of us are liars' Deepa: 'Exactly 2 of us are liars' Farhan: 'Meera is a truth-teller' Meera: 'Divya is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Divya: L ≥ 2
2. Pooja: L ≤ 3
3. Deepa: L = 2
4. Farhan: Meera is truth-teller
5. Meera: Divya is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Divya is liar - if true, then Divya is liar.
Statement 4 says Meera is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Divya would be liar.
Then statement 5 (Meera says 'Divya is liar') would be TRUE.
So Meera would be truth-teller. Then statement 4 (Farhan says 'Meera is truth-teller') would be TRUE.
So Farhan would be truth-teller. That gives at least 2 truth-tellers (Meera, Farhan) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 18

Pooja: 'At least 2 of us are liars' Ravi: 'At most 3 of us are liars' Amit: 'Exactly 2 of us are liars' Deepa: 'Priya is a truth-teller' Priya: 'Pooja is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Pooja: L ≥ 2
2. Ravi: L ≤ 3
3. Amit: L = 2
4. Deepa: Priya is truth-teller
5. Priya: Pooja is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Pooja is liar - if true, then Pooja is liar.
Statement 4 says Priya is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Pooja would be liar.
Then statement 5 (Priya says 'Pooja is liar') would be TRUE.
So Priya would be truth-teller. Then statement 4 (Deepa says 'Priya is truth-teller') would be TRUE.
So Deepa would be truth-teller. That gives at least 2 truth-tellers (Priya, Deepa) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 19

Farhan: 'At least 2 of us are liars' Pooja: 'At most 3 of us are liars' Sunil: 'Exactly 2 of us are liars' Gaurav: 'Rohan is a truth-teller' Rohan: 'Farhan is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Farhan: L ≥ 2
2. Pooja: L ≤ 3
3. Sunil: L = 2
4. Gaurav: Rohan is truth-teller
5. Rohan: Farhan is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Farhan is liar - if true, then Farhan is liar.
Statement 4 says Rohan is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Farhan would be liar.
Then statement 5 (Rohan says 'Farhan is liar') would be TRUE.
So Rohan would be truth-teller. Then statement 4 (Gaurav says 'Rohan is truth-teller') would be TRUE.
So Gaurav would be truth-teller. That gives at least 2 truth-tellers (Rohan, Gaurav) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.

Question 20

Harsha: 'At least 2 of us are liars' Meera: 'At most 3 of us are liars' Divya: 'Exactly 2 of us are liars' Neha: 'Manoj is a truth-teller' Manoj: 'Harsha is a liar' What is the minimum number of liars?
Let L = number of liars.

Statement constraints:
1. Harsha: L ≥ 2
2. Meera: L ≤ 3
3. Divya: L = 2
4. Neha: Manoj is truth-teller
5. Manoj: Harsha is liar

From statement 3, L must be exactly 2 for that statement to be true.
But statements 1 and 2 are consistent with L=2 as well.
Now check statements 4 and 5:
If L=2, then 3 truth-tellers exist.
Statement 5 says Harsha is liar - if true, then Harsha is liar.
Statement 4 says Manoj is truth-teller - can be true.
This configuration is possible with L=2.

Can L=1? Statement 1 would be false, so Harsha would be liar.
Then statement 5 (Manoj says 'Harsha is liar') would be TRUE.
So Manoj would be truth-teller. Then statement 4 (Neha says 'Manoj is truth-teller') would be TRUE.
So Neha would be truth-teller. That gives at least 2 truth-tellers (Manoj, Neha) plus possibly others, contradicting L=1.

Therefore L cannot be 1.
The minimum L is 2.
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