Question

The ratio of the length to the breadth of a rectangle is 3 : 1. Its perimeter is 48 cm. what is the area of rectangle?
1. 78 cm²
2. 108 cm²
3. 72 cm²
4. 216 cm²

Answer 1

Correct Answer - Option 2 : 108 cm²

Calculation:

⇒ Let the length of the rectangular plot be 3x and its breadth be x

⇒ Perimeter = 48 cm

⇒ 2 × (3x + x) = 48

⇒ x = 6

⇒ The area of plot = (3 × 1) × (6)² = 108 cm²

∴ The required result will be 108 cm².