Question

Find the number of bricks each of 22.5 centimetre * 10 centimetre , to be paved in a lane of length 240 metre and breadth 12 metre

Answer 1

Answer

• The number of bricks needed will be 12800

Explanation

Given

• Bricks are of dimension 22.5 cm & 10 cm
• Total area to be paved = 240 m & 12 m

To Find

• Number of bricks needed

Solution

• First find the area of the lane and the brick and assume the number of bricks to be x equate the area of lane with the area of the brick × x which will give us our Answer

✭ Area of Brick

→ Area = Length×Breadth

→ Area = 22.5 × 10

→ Area = 225 cm²

→ Area = 225/1000

→ Area = 0.225 m²

✭ Area of the lane

→ Area = Length×Breadth

→ Area = 240 × 12

→ Area = 2880 m²

✭ Number of bricks

→ Number of Bricks × Area of bricks = Area of lane

→ x × 0.225 = 2880

→ x = 2880/0.225

→ x = 12800

∴ Number of bricks needed will be 12800