Question

The length and breadth of a rectangle are in the ratio of 3 : 1 If its perimeter is 96 m, then what is the length of the rectangle?

• A. 36 m
• B. 24 m
• C. 12 m
• D. 48 m

Answer 1

Answer:

A. 36 m

Short Trick:

Length of the rectangle $=\frac{96}{2}\times{\frac{3}{4}}= 36 m$

Detailed Solution:

Let the length of rectangle $= 3\times{m}$ and breadth of rectactangle = x m

According to the question,

⇒ 2(3x + x) = 96

⇒ 4x = 48

⇒ x = 12

∴ Length of the rectangle = 3 × 12 = 36 m