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coded_binary_logic - Absolute-Beginner Level: core concept mastery coded_binary_logic ABSOLUTE BEGINNER

This skill primer 🌟 worksheet focuses on coded_binary_logic - a key topic in Binary Logic. You'll solve 20 absolute-beginner-level problems (Worksheet 1 of 10). The primary focus is on core concept mastery. Master coded_binary_logic problems, coded_binary_logic reasoning questions, and coded_binary_logic practice through systematic practice.

📝 Worksheet 1 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Absolute Beginner level

What you'll learn in this worksheet:
Your progress through coded_binary_logic
Worksheet 1 of 10 (0% complete)

Question 1

Manoj says: 'My code starts with 1' Ravi says: 'Manoj is lying about their code' Kiran says: 'The correct code has exactly two 1s' Amit says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 0110 makes all statements consistent:
* Manoj's statement is false → matches bit 0
* Ravi's statement is true → matches bit 1
* Kiran's statement is true → matches bit 1
* Amit's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 0110.

Question 2

Harsha says: 'My code starts with 1' Amit says: 'Harsha is lying about their code' Gaurav says: 'The correct code has exactly two 1s' Rahul says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1001 makes all statements consistent:
* Harsha's statement is true → matches bit 1
* Amit's statement is false → matches bit 0
* Gaurav's statement is true → matches bit 0
* Rahul's statement is false → matches bit 1

No other code satisfies all constraints.
Therefore, the correct code is 1001.

Question 3

Ravi says: 'My code starts with 1' Deepa says: 'Ravi is lying about their code' Harsha says: 'The correct code has exactly two 1s' Vikram says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1100 makes all statements consistent:
* Ravi's statement is true → matches bit 1
* Deepa's statement is false → matches bit 1
* Harsha's statement is true → matches bit 0
* Vikram's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1100.

Question 4

Pooja says: 'My code starts with 1' Farhan says: 'Pooja is lying about their code' Harsha says: 'The correct code has exactly two 1s' Manoj says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1100 makes all statements consistent:
* Pooja's statement is true → matches bit 1
* Farhan's statement is false → matches bit 1
* Harsha's statement is true → matches bit 0
* Manoj's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1100.

Question 5

Divya says: 'My code starts with 1' Pooja says: 'Divya is lying about their code' Kiran says: 'The correct code has exactly two 1s' Gaurav says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1001 makes all statements consistent:
* Divya's statement is true → matches bit 1
* Pooja's statement is false → matches bit 0
* Kiran's statement is true → matches bit 0
* Gaurav's statement is false → matches bit 1

No other code satisfies all constraints.
Therefore, the correct code is 1001.

Question 6

Manoj says: 'My code starts with 1' Kiran says: 'Manoj is lying about their code' Priya says: 'The correct code has exactly two 1s' Ravi says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1001 makes all statements consistent:
* Manoj's statement is true → matches bit 1
* Kiran's statement is false → matches bit 0
* Priya's statement is true → matches bit 0
* Ravi's statement is false → matches bit 1

No other code satisfies all constraints.
Therefore, the correct code is 1001.

Question 7

Divya says: 'My code starts with 1' Rahul says: 'Divya is lying about their code' Sanjay says: 'The correct code has exactly two 1s' Gaurav says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1010 makes all statements consistent:
* Divya's statement is true → matches bit 1
* Rahul's statement is false → matches bit 0
* Sanjay's statement is true → matches bit 1
* Gaurav's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1010.

Question 8

Neha says: 'My code starts with 1' Leena says: 'Neha is lying about their code' Rohan says: 'The correct code has exactly two 1s' Deepa says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 0110 makes all statements consistent:
* Neha's statement is false → matches bit 0
* Leena's statement is true → matches bit 1
* Rohan's statement is true → matches bit 1
* Deepa's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 0110.

Question 9

Neha says: 'My code starts with 1' Pooja says: 'Neha is lying about their code' Vikram says: 'The correct code has exactly two 1s' Kiran says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1001 makes all statements consistent:
* Neha's statement is true → matches bit 1
* Pooja's statement is false → matches bit 0
* Vikram's statement is true → matches bit 0
* Kiran's statement is false → matches bit 1

No other code satisfies all constraints.
Therefore, the correct code is 1001.

Question 10

Harsha says: 'My code starts with 1' Kiran says: 'Harsha is lying about their code' Leena says: 'The correct code has exactly two 1s' Divya says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 0110 makes all statements consistent:
* Harsha's statement is false → matches bit 0
* Kiran's statement is true → matches bit 1
* Leena's statement is true → matches bit 1
* Divya's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 0110.

Question 11

Rahul says: 'My code starts with 1' Manoj says: 'Rahul is lying about their code' Divya says: 'The correct code has exactly two 1s' Amit says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1010 makes all statements consistent:
* Rahul's statement is true → matches bit 1
* Manoj's statement is false → matches bit 0
* Divya's statement is true → matches bit 1
* Amit's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1010.

Question 12

Kiran says: 'My code starts with 1' Rohan says: 'Kiran is lying about their code' Meera says: 'The correct code has exactly two 1s' Neha says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1100 makes all statements consistent:
* Kiran's statement is true → matches bit 1
* Rohan's statement is false → matches bit 1
* Meera's statement is true → matches bit 0
* Neha's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1100.

Question 13

Harsha says: 'My code starts with 1' Ravi says: 'Harsha is lying about their code' Sunil says: 'The correct code has exactly two 1s' Leena says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1001 makes all statements consistent:
* Harsha's statement is true → matches bit 1
* Ravi's statement is false → matches bit 0
* Sunil's statement is true → matches bit 0
* Leena's statement is false → matches bit 1

No other code satisfies all constraints.
Therefore, the correct code is 1001.

Question 14

Rahul says: 'My code starts with 1' Sanjay says: 'Rahul is lying about their code' Sunil says: 'The correct code has exactly two 1s' Neha says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1010 makes all statements consistent:
* Rahul's statement is true → matches bit 1
* Sanjay's statement is false → matches bit 0
* Sunil's statement is true → matches bit 1
* Neha's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1010.

Question 15

Divya says: 'My code starts with 1' Leena says: 'Divya is lying about their code' Meera says: 'The correct code has exactly two 1s' Pooja says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1100 makes all statements consistent:
* Divya's statement is true → matches bit 1
* Leena's statement is false → matches bit 1
* Meera's statement is true → matches bit 0
* Pooja's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1100.

Question 16

Pooja says: 'My code starts with 1' Divya says: 'Pooja is lying about their code' Rahul says: 'The correct code has exactly two 1s' Vikram says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1001 makes all statements consistent:
* Pooja's statement is true → matches bit 1
* Divya's statement is false → matches bit 0
* Rahul's statement is true → matches bit 0
* Vikram's statement is false → matches bit 1

No other code satisfies all constraints.
Therefore, the correct code is 1001.

Question 17

Vikram says: 'My code starts with 1' Ravi says: 'Vikram is lying about their code' Neha says: 'The correct code has exactly two 1s' Leena says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 0110 makes all statements consistent:
* Vikram's statement is false → matches bit 0
* Ravi's statement is true → matches bit 1
* Neha's statement is true → matches bit 1
* Leena's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 0110.

Question 18

Sunil says: 'My code starts with 1' Meera says: 'Sunil is lying about their code' Neha says: 'The correct code has exactly two 1s' Pooja says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1100 makes all statements consistent:
* Sunil's statement is true → matches bit 1
* Meera's statement is false → matches bit 1
* Neha's statement is true → matches bit 0
* Pooja's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1100.

Question 19

Priya says: 'My code starts with 1' Divya says: 'Priya is lying about their code' Rahul says: 'The correct code has exactly two 1s' Leena says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1010 makes all statements consistent:
* Priya's statement is true → matches bit 1
* Divya's statement is false → matches bit 0
* Rahul's statement is true → matches bit 1
* Leena's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1010.

Question 20

Deepa says: 'My code starts with 1' Rahul says: 'Deepa is lying about their code' Pooja says: 'The correct code has exactly two 1s' Priya says: 'My code ends with 0' Each person has a 4-digit code where 1=truth-teller, 0=liar. The code represents the sequence of T/L for P0, P1, P2, P3 respectively. What is the correct code?
The code represents the truth pattern: 1=truth-teller, 0=liar.

Testing each possible code:
- Code 1100 makes all statements consistent:
* Deepa's statement is true → matches bit 1
* Rahul's statement is false → matches bit 1
* Pooja's statement is true → matches bit 0
* Priya's statement is true → matches bit 0

No other code satisfies all constraints.
Therefore, the correct code is 1100.
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