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What should come in place of the question mark (?) in the following number series?

7, 26, 63, 124, ?


1. 215
2. 216
3. 218
4. 212
5. 220

1 Answer

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Best answer
Correct Answer - Option 1 : 215

Calculation:

The series follows the following pattern:

⇒ 23 – 1 = 7

⇒ 33 – 1 = 26

⇒ 4– 1 = 63

⇒ 53 – 1 = 124

⇒ 63 – 1 = 215

∴ The missing term in the series is 215.

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