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

General Intelligence and Reasoning (CHSL) Number series

Study the given pattern carefully and select the number that can replace the question

mark (?) in it.

First row- 14, 4, 31

Second row- 38, 10, 79

Third row- 30, 8, ?

(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)

This questions was previously asked in

SSC CHSL 1st June 2022 Shift-2

Let's analyze the pattern given:

- In the first row: \(14 \times 2 - 3 = 31\).

- In the second row: \(38 \times 2 + 3 = 79\).

Based on this pattern, the operation seems to alternate the addition and subtraction of 3 after doubling the first number:

- For the third row, apply: \(30 \times 2 - 3 = 60 - 3 = 57\).

The calculation above reaches 57, not matching any of the provided options. Hence, let's re-evaluate using a different arithmetic pattern:

Many patterns could work, but let's check if simply doubling and adding a fixed number matches one of the options at least:

- First row: \(14 \times 2 + 3 = 31\).

- Second row: \(38 \times 2 + 3 = 79\).

- For the third row: \(30 \times 2 + 3 = 63\).

So, the missing number is 63.

- Option 3: 63 is the correct answer.

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