Free GMA Number Series Questions and Answers 1 — Questions and Answers
Question 1: What number should come next in the series: 5, 7, 14, 16, 32, 34, ?
- 36
- 64
- 68 (Correct answer)
- 70
Correct answer: 68
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, ?
- 15
- 16
- 18 (Correct answer)
- 20
Correct answer: 18
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, ?
- 197
- 216
- 217 (Correct answer)
- 245
Correct answer: 217
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, ?
- 62
- 64 (Correct answer)
- 66
- 68
Correct answer: 64
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, ?
- 188
- 190 (Correct answer)
- 192
- 194
Correct answer: 190
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.
Question 6: Find the next fraction in the sequence: 1/2, 3/4, 5/8, 7/16, 9/32, ?
- 11/64 (Correct answer)
- 11/34
- 10/64
- 13/64
Correct answer: 11/64
There are two separate patterns for the numerator and the denominator. The numerator is a simple arithmetic series of odd numbers (1, 3, 5, 7, 9...), so the next is 11. The denominator is a geometric series, multiplying by 2 each time (2, 4, 8, 16, 32...), so the next is 64.
Free GMA Number Series Questions and Answers 1
What number should come next in the series: 5, 7, 14, 16, 32, 34, ?