Question Discussion & Solution

Calculation:

The series follows the pattern:

⇒ 25 × 8 = 200

⇒ 200 ÷ 5 = 40

⇒ 40 × 8 = 320

⇒ 320 ÷ 5 = 64

⇒ 64 × 8 = 512

∴ The missing number is 320.

24 × 1 + 5 = 29

29 × 2 + 4 = 62

62 × 3 + 3 = 189

189 × 4 + 2 = 758

The series follows the following pattern:

8

8 × 2 + 1 = 17

17 × 2 + 1 = 35

35 × 2 + 1 = 71

71 × 2 + 1 = 143

143 × 2 + 1 = 287

∴ The missing term in the series is 143.

The pattern of given series is:

→ 15 = 7 + 8

→ 27 = 15 + 12

→ 43 = 27 + 16

→ 63 = 43 + 20

The difference increases by 4.

Fibonacci Series is a special number series in which each term is obtained by adding the previous 2 terms starting from 1, 1.

The Fibonacci Range Used: 3, 5, 8, 13

3 × 3 = 9

9 × 5 = 45

45 × 8 = 360

360 × 13 = 4680