7, 9, 16, 25, 41, 68, 107, 173,?

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: 840

Explanation:

Series pattern
÷ 1, ÷ 2, ÷ 3, ÷ 4, ÷ 5
? Missing term = 840/1 = 840

Correct Answer: 421

Explanation:

Series pattern
x 2 + 5, x 3 + 5, x 4 + 5, x 5 + 5,
? Missing term = 104 x 4 + 5 = 416 + 5 = 421

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: 222

Explanation:

Series pattern
656 - 224 = 432
432 - 112 = 320
320 - 56 = 264
264 - 28 = 236
236 - 14 = 222 Should come in place of '?'

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 '?'