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July 11th, 2016, 01:05 PM
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Join Date: Mar 2013
Re: APPSC Mental Ability Questions

Hey as per your demand here I am providing you details of APPSC Mental Ability Questions for your preparation

Here I am giving you APPSC Mental Ability Questions

Example 1. 4, 9, 25, 49, 121, 169,…
(a) 324 (b) 289
(c) 225 (d) 196
Solution. (b) The given series is a consecutive square of prime number series. The next prime number is 289.

Example 2. 5, 7, 13, 23, …
(a) 25 (b) 27
(c) 29 (d) 41
Solution. (d) The difference between prime numbers is increasing. 7 is next prime to 5; 13 is second to next prime to 7; 23 is third to next to 13. Hence, next should be fourth to next prime to 23. Hence, required number is 41.

Multiplication Series:

Example 3. 4, 8, 16, 32, 64… 256
(a) 96 (b) 98
(c) 86 (d) 106
Solution. (a) The numbers are multiplied by 2 to get the next number.
64 × 2 = 128

Example 4. 5, 20, 80, 320, … 1280
(a) 5120 (b) 5220
(c) 4860 (d) 3642
Solution. (a) The numbers are multiplied by 4 to get the next number.
1280 × 4 = 5120

Difference Series:

Example 5. 3,6,9,12,15,…. 21
(a) 16 (b) 17
(c) 20 (d) 18
Solution. (d) The difference between the numbers is 3.
15 + 3 = 18

Example 6. 55, 50, 45, 40,….30
(a) 33 (b) 34
(c) 35 (d) 36
Solution. (c) The difference between the numbers is -5.
40 – 5 = 35

Division Series:

Example 7. 5040, 720, 120, 24, ….2,1
(a) 8 (b) 7
(c) 6 (d) 5
Solution. (c)

Example 8. 16, 24, 36,… 81
(a) 52 (b) 54
(c) 56 (d) 58
Solution. (b) Previous number × = Next number

N2 Series

Example 9. 4, 16, 36, 64, …. 144
(a) 112 (b) 78
(c) 100 (d) 81
Solution. (c) The series is square of consecutive even numbers. 22, 42,62, 82
Next number is 102 = 100

Example 10. 1, 4, 9, 16, 25, 36, 49, … 81
(a) 100 (b) 121
(c) 64 (d) 144
Solution. (c) The series is 12, 22, 32, 42, 52,62, 72,….
The next number is 82 = 64

(n2 + 1) Series

Example 11. 17, 26, 37, 50, 65,….101
(a) 82 (b) 75
(c) 78 (d) 90
Solution. (a) The series is 16 + 1, 25 +1, 36 + 1, 49 + 1, 64 + 1, 81+1,100+1.
The required number is 92 + 1 = 82

Example 12. 101, 401, 901, 1601, 2501, …. 4901
(a) 2201 (b) 3301
(c) 4401 (d) 3601
Solution. (d) The series is 12 01, 22 01, 32 01, 42 01, 52 01, etc.
The next number is 62 01 = 3601


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