Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Logical and Analytical Reasoning

Topic

Mathematical Operations

Question:

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

(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 / subtracting / 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)

(144, 9, 3)

(225, 7, 8)

Options:

(168, 5, 8)

(64, 5, 3)

(81, 6, 2)

(120, 7, 4)

Correct Answer:

(64, 5, 3)

Explanation:

(144, 9, 3)

(225, 7, 8)

The logic followed here is :

(second number +  IIIrd number)2 = Ist number

as

(9 +  3)2 = 144

(12)2 =144

(7 +  8)2 = 225

(15)2 = 225

same as (64, 5, 3)

(5  3)2 = 64

(8)2 = 64