656, 432, 320, 264, 236,?

Correct Answer: 1.75

Explanation:

Series pattern
16 x 0.25 = 4,
4 x 0.50 = 2,
2 x 0.75 =1.5,
1.5 x 1.00 = 1.5
Should come in place of 1.75
1.5 x 1.25 = 1.875
Clearly, 1.75 is wrong and will be replaced by 1.5

Correct Answer: 68

Explanation:

Series pattern
7 + 9 = 16,
9 + 16 = 25,
16 + 25 = 41,
25 + 41 = 66
Should come in place of 68
41 + 66 = 107,
66 + 107 = 173
Clearly, 68 is wrong and will be replaced by 66.

Correct Answer: 62

Explanation:

Series pattern = (2 x Previous number) + 2
? Missing term = 2 x 30 +2 = 62

Correct Answer: 109

Explanation:

Series pattern +15, + 30, +60, +120
? Missing term = 49 + 60 = 109

Correct Answer: 20

Explanation:

Series pattern - 45, - 35, -25,...
? Missing term = 45 - 25 = 20

Correct Answer: 69

Explanation:

Series pattern
1³ + 5, 2³ + 5, 3³ + 5, 4³ + 5, 5³ + 5
? Missing term = 4³ + 5 = 69

Correct Answer: 131.625

Explanation:

Series pattern
50 x 1.2 = 60,
60 x 1.25 = 75,
75 x 1.3 = 97.5,
97.5 x 1.35 = 131.625 Should come in place of '?'
131.625 x 1.4 = 184.275
184.275 x 1.45 = 267.19875

Correct Answer: 2676

Explanation:

1 x 1 + 1 = 2
2 x 2 + 2 = 6
6 x 3 + 3 = 21
21 x 4 + 4 = 88
88 x 5 + 5 = 445
445 x 6 + 6 = 2676 Should come in place of '?'

Correct Answer: 11

Explanation:

Series pattern
600/5 + 5 = 125
125/5 + 5 = 30
30/5 + 5 = 11
Should come in place of '?'
11/5 + 5 = 7.2
7.5/5 + 5 = 6.44
6.44/5 + 5 = 6.288

Correct Answer: 864

Explanation:

Series pattern
12 x 2 = 24
24 x 3 = 72
72 x 2 = 144
144 x 3 = 432
432 x 2 = 864
Should come in place of '?'