Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

Find the area of four walls of a room having length 12.5 m, breadth 9 m and height 7 m.

Options:

$289 m^2$

$300 m^2$

$307 m^2$

$301 m^2$

Correct Answer:

$301 m^2$

Explanation:

The area of four walls = 2(length + breadth) × height

= 2 ( 12.5 + 9) × 7

= 2 ( 21.5 × 7 )

= 301 m²