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Number Analogy - Advanced Level: decimal patterns ADVANCED

Exam-focused holistic practice ★ worksheet: 20 advanced-level number analogy questions. Worksheet 23 of 30 targets decimal patterns. Build proficiency in square-cube patterns, prime numbers, arithmetic operations with detailed solutions. Ideal for advanced competitive exam preparation.

📝 Worksheet 23 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Advanced level

What you'll learn in this worksheet:
Your progress through Number Analogy
Worksheet 23 of 30 (76% complete)

Question 1

Find the missing number: 6 : 36 :: 5 : ?
The relationship is squaring the number. So 6² = 36, and 5² = 25
square, power

Question 2

Find the missing number: 1, 5 : 6 :: 3, 5 : ?
Fibonacci pattern: each term is sum of previous two. 3 + 5 = 8
pattern, sequence

Question 3

Find the missing number: 37 : 41 :: 37 : ?
The relationship is the next prime number. Next prime after 37 is 41
prime, advanced

Question 4

Find the missing number: 10, 14 : 4 :: 9, ? : ?
In AP, common difference = 4. Next term after 9 is 13
progression, sequence

Question 5

Find the missing number: 3 : 12 :: 4 : ?
The relationship is double factorial. 2 × 3! = 12, 2 × 4! = 48
factorial, advanced

Question 6

Find the missing number: 29 : 1 :: 99 : ?
The relationship is sum of digits plus 1 (wrapping at 9). For 99: 18 + 1 = 1
digit, sum

Question 7

Find the missing number: 5 : sum of 3 terms = 24 :: 2 : sum of 3 terms = ?
Sum of 3 terms of AP: n/2 × (2a + (n-1)d). For 2, sum = 15
progression, sequence

Question 8

Find the missing number: 10 : 18 :: 7 : ?
The relationship follows an alternating addition pattern: +8, then +9. So 7 + 9 = 16
addition, basic

Question 9

Find the missing number: 19 : 13 :: 29 : ?
The relationship is subtracting 6. So 19 - 6 = 13, and 29 - 6 = 23
subtraction, basic

Question 10

Find the missing number: 1, 2 : 3 :: 2, 2 : ?
Fibonacci pattern: each term is sum of previous two. 2 + 2 = 4
pattern, sequence

Question 11

Find the missing number: 125 : 10 :: 234 : ?
The relationship is the product of digits. Product of digits of 125 = 10, product of digits of 234 = 24
product, digits

Question 12

Find the missing number: 4 : 12 :: 5 : ?
The relationship is partial factorial (first 2 terms). For 5: 5 × 4 × ... = 20
factorial, advanced

Question 13

Find the missing number: 2, 3, 2 : 7 :: 1, 2, 4 : ?
Tribonacci pattern: each term is sum of previous three. 1+2+4 = 7
pattern, sequence

Question 14

Find the missing number: 25 : 14 :: 27 : ?
The subtractor increases: -11 then -13. So 27 - 13 = 14
subtraction, basic

Question 15

Find the missing number: 5 : 25 :: 2 : ?
The relationship is raising to the power of 2. So 5^2 = 25, and 2^2 = 4
square, power

Question 16

Find the missing number: 29 : 23 :: 17 : ?
The relationship is the previous prime number. Previous prime before 17 is 13
prime, advanced

Question 17

Find the missing number: 67 : 13 :: 46 : ?
The relationship is the sum of digits. Sum of digits of 67 = 13, sum of digits of 46 = 10
digit, sum

Question 18

Find the missing number: 40 : 10 :: 28 : ?
The relationship is dividing by 4. So 40 ÷ 4 = 10, and 28 ÷ 4 = 7
division, basic

Question 19

Find the missing number: 39 : 3 :: 39 : ?
The relationship is the digital root (repeated sum until single digit). Digital root of 39 = 3, of 39 = 3
digit, sum

Question 20

Find the missing number: 9, 13 : 4 :: 8, ? : ?
In AP, common difference = 4. Next term after 8 is 12
progression, sequence
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