The numbers are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13.
So, 150 is wrong.
The terms of the series are products of two consecutive prime numbers i.e.
(2 x 3), (3 x 5), (5 x 7), (7 x 11),.....
So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.
343 = , 1331 = , 2197 = , 121 =
343, 1331, 2197 are perfect cubes, but not 121.
The given number series follows a pattern that
5 x 5 ? 1 = 24
24 x 4 ? 2 = 94
94 x 3 ? 3 = 279
279 x 2 ? 4 = 554
In the given series 1 4 9 16 22 36
1 = 1 x 1
4 = 2 x 2
9 = 3 x 3
16 = 4 x 4
25 = 5 x 5 (Not 22)
36 = 6 x 6
Hence, the odd man in the series is 22.
The given number series is 152, 124, 96, 69, 40
152
152 - 28 = 124
124 - 28 = 96
96 - 28 = 68 (not 69)
68 - 28 = 40
Hence, the odd man in the given number series is 69.
The given number series follows a pattern that
196, 169, 144, 121, 100, 81, ?
-27 -25 -23 -21 -19 -17
=> 81 - 17 = 64
Therefore, the series is 196, 169, 144, 121, 100, 81, 64.
All except Parrot are birds of prey.
Given
6 3 3 6 24 ?
Here
6
6 x 0.5 = 3
3 x 1 = 3
3 x 2 = 6
6 x 4 = 24
24 x 8 = 192
The next number in the given series is 192.
1 x 1 + 1 x 1 = (1 + 1) = 2
2 x 2 + 2 x 2 = (4 + 4) = 8
8 x 3 + 3 x 3 = (24 + 9) = 33
33 x 4 + 4 x 4 = (132 + 16) = 148
148 x 5 + 5 x 5 = (740 + 25) = 765.
Comments
There are no comments.Copyright ©CuriousTab. All rights reserved.