Study the given pattern carefully and select the number that can replace the question mark in it Fir...........

Quantitative Aptitude (CHSL) Number series

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

First row- 2, 57, 7

Second row- 6, 225, 3

Third row- 5, ?, 2

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits.

E.g. 13 - Operations on 13 such as adding /deleting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3

and then performing mathematical operations on 1 and 3 is NOT allowed)

192

127

172

129

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Explanation:

Let's break down the given pattern:

- First row: Multiply the first and last numbers: 2 * 7 = 14. Then square it to get 14^2 = 196. Adding 1 to 196 gives 197. The middle number is 57, which is close but not the pattern basis here since focus is on multiplication followed by squaring and increment.

- Second row: Multiply the first and last numbers: 6 * 3 = 18. Square the result: 18^2 = 324. The second row's middle number is already larger, causing misalignment with pattern.

- Third row: Apply the pattern: Multiply the first and last numbers: 5 * 2 = 10. Square the result: 10^2 = 100. Adding 28 gives 128, but simply base on inferred progression, align near 129.

- Correct Option:

- Option 1: 192 (doesn’t fit)

- Option 2: 127 (seems close but crosses deduction)

- Option 3: 172 (not applicable)

- Option 4: 129