Question 1

Complete the series: 1, 4, 9, 16, 25, 36, ?

Accepted Answer

This series consists of perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36, 7²=49.

Question 2

Find the missing term in the series: 2, 5, 10, 17, 26, ?

Accepted Answer

This is a series where each term increases by an odd number. The differences are: 5-2=3, 10-5=5, 17-10=7, 26-17=9. The next difference should be 11, so the missing term is 26+11=37.

Question 3

Find the next term: 1, 4, 9, 16, 25, ?

Accepted Answer

This series consists of perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36.

Question 4

What comes next in the series: 2, 3, 5, 7, 11, 13, ?

Accepted Answer

This series consists of prime numbers in ascending order. The sequence is: 2, 3, 5, 7, 11, 13, and the next prime number is 17.

Question 5

Find the missing term in the series: 3, 6, 12, 24, 48, ?

Accepted Answer

This is a geometric series where each term is multiplied by 2 to get the next term. The pattern is: 3 × 2 = 6, 6 × 2 = 12, 12 × 2 = 24, 24 × 2 = 48, 48 × 2 = 96.

Question 6

What is the next term in the series: 5, 10, 20, 40, 80, ?

Accepted Answer

Each term is multiplied by 2 to get the next term. This is a geometric series with common ratio 2. 5×2=10, 10×2=20, 20×2=40, 40×2=80, 80×2=160.

Question 7

Complete the series: 1, 4, 9, 16, 25, ?

Accepted Answer

This series contains perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25. The next term is 6²=36.

Question 8

What comes next in the series: 1, 4, 9, 16, 25, ?

Accepted Answer

This series consists of perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25. The next term is 6²=36.

Question 9

What comes next in the series: 2, 3, 5, 7, 11, 13, ?

Accepted Answer

This series contains consecutive prime numbers: 2, 3, 5, 7, 11, 13 are all prime. The next prime number after 13 is 17.

Question 10

Complete the series: 5, 10, 20, 40, 80, ?

Accepted Answer

This is a geometric series where each term is multiplied by 2. The pattern is: 5×2=10, 10×2=20, 20×2=40, 40×2=80, 80×2=160.

Question 11

Complete the series: 3, 6, 12, 24, 48, ?

Accepted Answer

This is a geometric series where each term is multiplied by 2. The pattern is: 3×2=6, 6×2=12, 12×2=24, 24×2=48, 48×2=96.

Question 12

Complete the series: 3, 6, 12, 24, 48, ?

Accepted Answer

This is a geometric series where each term is multiplied by 2. The pattern is: 3×2=6, 6×2=12, 12×2=24, 24×2=48, 48×2=96.

Question 13

Find the missing term in the series: 3, 6, 12, 24, 48, ?

Accepted Answer

This is a geometric series where each term is multiplied by 2 to get the next term. 3 × 2 = 6, 6 × 2 = 12, 12 × 2 = 24, 24 × 2 = 48, 48 × 2 = 96.

Question 14

Find the missing number: 5, 8, 13, 20, 29, ?

Accepted Answer

The differences between consecutive terms are: 8-5=3, 13-8=5, 20-13=7, 29-20=9. These differences form the sequence of odd numbers (3, 5, 7, 9). The next odd number is 11, so the missing term is 29+11=40.

Question 15

What comes next? 2, 3, 5, 7, 11, 13, ?

Accepted Answer

This series contains consecutive prime numbers. 2, 3, 5, 7, 11, 13 are all prime. The next prime number after 13 is 17.

Question 16

Find the missing number: 2, 3, 5, 7, 11, 13, ?

Accepted Answer

This series contains consecutive prime numbers. 2, 3, 5, 7, 11, 13 are all prime numbers in order. The next prime number after 13 is 17.

Question 17

Find the missing term in the series: 2, 5, 10, 17, 26, ?

Accepted Answer

This is a series where each term increases by consecutive odd numbers. The differences are: 5-2=3, 10-5=5, 17-10=7, 26-17=9. The next difference should be 11, so 26+11=37.

Question 18

Find the missing term in the series: 3, 6, 9, 12, ?, 18

Accepted Answer

This is an arithmetic series where each term increases by 3. Starting from 3: 3+3=6, 6+3=9, 9+3=12, 12+3=15, 15+3=18. The missing term is 15.

Question 19

Find the missing term: 1, 4, 9, 16, 25, ?, 49

Accepted Answer

This series consists of perfect squares: 1², 2², 3², 4², 5², 6², 7². The missing term is 6² = 36.

Question 20

Complete the series: 3, 8, 15, 24, 35, ?, 63

Accepted Answer

Each term follows n² + 2n, where n = 1, 2, 3, 4, 5, 6, 7. The missing term is 6² + 2(6) = 36 + 12 = 48.

Agniveer Army GD Series Completion

Series Completion — Practice Questions