Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Logical and Analytical Reasoning

Topic

Mathematical Operations

Question:

Select the set in which the number are related in the same way as are the numbers of the following set.

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

(4, 50, 6)

(13, 128, 3)

Options:

(12, 60, 5)

(2, 125, 3)

(2, 62, 6)

(15, 162, 3)

Correct Answer:

(15, 162, 3)

Explanation:

(4, 50, 6)

(13, 128, 3)

The logic followed is :

(1st no. + 3rd no.) ×  (1st no. + 3rd no.)/2 = 2nd no.

4, 50, 6 ⇒ (4 + 6) × (4 + 6)/2 = 10 × 5 = 50

13, 128, 3 ⇒ (13 + 3) × (13 + 3)/2 = 16 × 8 = 128

Similarly,

Checking from the option, we found the answer from option (4)

15, 162, 3 (15 + 3) × (15 + 3)/2 = 18 × 9 = 162