Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Ratios

Question:

How much should be added to each term of 4 : 7 so that it becomes 2 : 3?

Options:

3

4

2

1

Correct Answer:

2

Explanation:

A : B

4 : 7

Numbers that should be added to make it 2 : 3,

= \(\frac{4R\;+\;a}{7R\;+\;a}\) = \(\frac{2}{3}\)

= 12R + 3a = 14R + 2a

= a = 2R

Put R = 1

Therefore, a is 2.