Before going into Numerical Ability or Quantitative Aptitude contents need to know some BASICS.
With little effort and interest you can learn Aptitude yourself.
Aptitude is very simple and easy, if you can practice some Rules and Tricks. .... !
Practice some following common squares :-
101 x 101 = 10201 | 111 x 111 = 12321 | 91 x 91 = 8281 |
102 x 102 = 10404 | 112 x 112 = 12544 | 92 x 92 = 8464 |
103 x 103 = 10609 | 113 x 113 = 12769 | 93 x 93 = 8649 |
104 x 104 = 10816 | 114 x 114 = 12996 | 94 x 94 =8836 |
105 x 105 = 11025 | 115 x 115 = 13225 | 95 x 95 = 9025 |
106 x 106 = 11236 | 116 x 116 = 13456 | 96 x 96 = 9216 |
107 x 107 = 11449 | 117 x 117 = 13689 | 97 x 97 = 9409 |
108 x 108 = 11664 | 118 x 118 = 13924 | 98 x 98 = 9604 |
109 x 109 = 11881 | 119 x 119 = 14161 | 99 x 99 = 9801 |
110 x 110 = 12100 | 120 x 120 = 14400 | 100 x 100 = 10000 |
Cubes (1 to 10)
1^{3} = 1
2^{3} = 8
3^{4} = 27
4^{3} = 64
5^{3} = 125
6^{3} = 216
7^{3} = 343
8^{3} = 512
9^{3} = 729
10^{3} = 1000
Cubes (11 to 20)
11^{3} = 1331
12^{3} = 1728
13^{3} = 2197
14^{3} = 2744
15^{3} = 3375
16^{3} = 4096
17^{3} = 4913
18^{3} = 5832
19^{3} = 6859
20^{3} = 8000
Prime Numbers:
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,79,83,89,91,97
Prime Cubes:
2^{3} = 8
3^{4} = 27
5^{3} = 125
9^{3} = 729
10^{3} = 1000
12^{3} = 1728
15^{3} = 3375
Composite Cubes:
4^{3} = 64
6^{3} = 216
7^{3} = 343
8^{3} = 512
11^{3} = 1331
13^{3} = 2197
Example 1: Previous Exam Questions
Question: 111 ^{2} + 11 ^{3} = ?
Observe the above question of x ^{2} + y ^{3} = ?
12321 + 1331 = 13652
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