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RRB ALP CBT I 16 Feb 2026 Shift 2 Paper

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Question : 75 of 75

Marks: +1, -0

49 is related to 99 following a certain logic. Following the same logic, 73 is related to 147. To which of the given options is 26 related, following the same logic?

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

53
64
59
62

Solution:

Concept:

The given pair follows the operation

( \text{Number} \times 2 ) + 1

.

Explanation:

For

49 \rightarrow 99

:

49 \times 2 = 98

98 + 1 = 99

For

73 \rightarrow 147

:

73 \times 2 = 146

146 + 1 = 147

This confirms the same logic works for both pairs.

Operations are performed on the whole numbers, so 26 is used directly without splitting it.

Applying the same logic to 26:

26 \times 2 = 52

52 + 1 = 53

Answer:

Hence, 26 is related to 53.

The correct option is A. 53.

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