FREE GMA Number Series Questions and Answers

Question 1

What number should come next in the series: 5, 7, 14, 16, 32, 34, ?

Accepted Answer

68

Answer

The pattern is a repeating sequence of two operations: add 2, then multiply by 2. Starting from 5: 5+2=7, 7*2=14, 14+2=16, 16*2=32, 32+2=34. The next step is to multiply by 2: 34 * 2 = 68.

Question 2

Find the next number in the sequence: 3, 10, 8, 12, 13, 14, ?

Accepted Answer

18

Answer

This sequence is composed of two interleaved series. The first series is 3, 8, 13, ... (adding 5 each time). The second series is 10, 12, 14, ... (adding 2 each time). The next number required belongs to the first series: 13 + 5 = 18.

Question 3

What is the next number in the series: 2, 9, 28, 65, 126, ?

Accepted Answer

217

Answer

The pattern is the cube of consecutive integers, plus 1. The series is (1³+1), (2³+1), (3³+1), (4³+1), (5³+1). The next term is 6³ + 1, which is 216 + 1 = 217.

Question 4

Complete the sequence: 100, 99, 96, 91, 84, 75, ?

Accepted Answer

64

Answer

The difference between consecutive numbers is increasing by 2 each time. The pattern of subtraction is -1, -3, -5, -7, -9. The next number to be subtracted is -11. So, 75 - 11 = 64.

Question 5

What number comes next in the series: 4, 10, 22, 46, 94, ?

Accepted Answer

190

Answer

The pattern is to multiply the previous number by 2 and then add 2. For example, 4 * 2 + 2 = 10, and 10 * 2 + 2 = 22. The final step is 94 * 2 + 2 = 188 + 2 = 190.

(GMA) General Mental Ability Practice Test

(GMA) General Mental Ability Practice Test

FREE GMA Number Series Questions and Answers