Which of the following numbers will replace the question mark in the given series 2 22 32 42 57 87 1...........

General Intelligence and Reasoning (CHSL) Number series

Which of the following numbers will replace the question mark (?) in the given series?

2, 22, 32, 42, 57, 87, 162, ?

This questions was previously asked in

SSC CHSL 27th May 2022 Shift-1

387

356

365

378

Let's analyze the series: 2, 22, 32, 42, 57, 87, 162, ?

- Start with 2.

- Then add 20 to get 22.

- Next, add 10 to reach 32.

- Add 10 more to get 42.

- Add 15 to reach 57.

- Add 30 to get 87.

- Lastly, add 75 to reach 162.

You can observe increments like 20, 10, 10, 15, 30, 75. Predictably, this pattern suggests increasing increments:

- The next increment could be 225 after following the sequence of multiplying last two differences of 75 by 3.

- Thus, adding 225 to 162 gives 387.

- So, the number that replaces the question mark is 387.

- Option: 1 is the right choice.

Submit Error