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2025

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Number Analogy

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NTPC Graduate Tier 1 2025 Shift-3 📅 06 Jun, 2025

4 is related to 10 following a certain logic. Following the same logic, 34 is related to 40. To which of the following is 66 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.)

A

70

B

68

C

72

D

74

Result Summary

APEDIA

NTPC Graduate Tier 1

2025 • 06 Jun, 2025 • Shift-3

4 is related to 10 following a certain logic. Following the same logic, 34 is related to 40. To which of the following is 66 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.)

Correct Answer

72

Difference Analysis: Let's look at the mathematical difference between the paired numbers. For the first pair, 10 - 4 = +6. For the second pair, 40 - 34 = +6.Pa......

💡 Analysis & Explanation

Difference Analysis ▼

Let's look at the mathematical difference between the paired numbers. For the first pair, 10 - 4 = +6. For the second pair, 40 - 34 = +6.

Pattern Identification ▼

The established logic is a simple constant addition. The second number is consistently obtained by adding 6 to the first whole number.

Applying the Logic ▼

To find the number related to 66, we simply add 6 to it: $66 + 6 = 72$.

Conclusion ▼

Following this constant difference logic, 66 is related to 72.