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In the following question, a number series is given, after the number series, a number and then A, B, C, D and E are given. Compete the number series starting from the given number based on the pattern of the original number series and choose correct option.

11

22

66

330

2310

25410

13

A

B

C

D

E

What will come in place of ‘C’?


1. 330
2. 380
3. 312
4. 390
5. 468

1 Answer

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Correct Answer - Option 4 : 390

The pattern of the original number series is

⇒ 11 × 2 = 22

⇒ 22 × 3 = 66

⇒ 66 × 5 = 330

⇒ 330 × 7 = 2310

⇒ 2310 × 11 = 25410

According the pattern of the above series the number series starting from the given number would be as:

⇒ A = 13 × 2 = 26

⇒ B = 26 × 3 = 78

⇒ C = 78 × 5 = 390

The required number in place of C would be 390.

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