Question

The base of a traingular wall is 5 times of its height. Find the base, if the cost of painting thevwall at Rs 25 per m² is Rs.625000.
1. 700 m
2. 500 m
3. 100 m
4. 250 m

Answer 1

Correct Answer - Option 2 : 500 m

Given

Base of traingle = 5 × height of triangle

Formula used

Area of traingle = (1/2) × base × height

Calculation

Area of traingle = 625000/25

⇒ 25000 m

(1/2) × 5h × h = 25000

⇒ 5h = 50,000

⇒ h = 10,000

⇒ h = 100

Base = 5 × 100

⇒ 500m

∴ Base of triangle is 500 m