Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Ratios

Question:

In a bag, white mobile covers and black mobile covers are in the ratio of 4 : 7. If there are 280 black mobile covers, then how many white mobile covers are there in the bag?

Options:

154

158

160

156

Correct Answer:

160

Explanation:

Here,

White : Black

  4     :    7

⇒ 7 units = 280

⇒ 1 unit = 40

No. of white balls = 4 x 40 = 160.