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SSC CPO SI and ASI Model Paper 9

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Directions (Q. 9–10): What will come in place of ‘?’ in the given series?

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Question : 10 of 200

Marks: +1, -0

2 7 25 105 531 3193 ?

22359
22259
22149
21369

Solution:

Concept:

Each term follows a multiply-and-add pattern with increasing numbers.

Explanation:

2 \times 2 + 3 = 7

7 \times 3 + 4 = 25

25 \times 4 + 5 = 105

105 \times 5 + 6 = 531

531 \times 6 + 7 = 3193

Next,

3193 \times 7 + 8 = 22359

.

Answer:

The required term is

22359

.

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