Question

Painting a wall 3 m ×5m at the rate of 5 per sq cm.

Answer 1

Given that,

Length of the wall = 3 m

Breadth of the wall = 5 m

Rate of painting the wall = ₹5/cm²

To find,

Cost of painting the wall = ?

First of all, we'll find the area of the wall, then we'll multiply it with the rate so that, we'll get the cost of painting the wall.

Formula used for finding the area,

Area = lb

Area = 3 m * 5 m

Area = 15 m²

Area (in cm²) = 150,000 cm²

Cost of painting the wall = Rate * area

Cost of painting the wall = ₹5/cm² * 150,000 cm²

Cost of painting the wall = ₹ 750,000.

$\huge{\boxed{\pink{Cost = Rs.\:750,000}}}$