Question

7. A lane, 150 m long and 9 m wide, is to be paved with bricks, each measuring 22.5 cm by
7.5 cm. Find the number of bricks required.​

Answer 1

There is your answer

80,000 bricks

Answer 2

The number of bricks required is 80000 bricks

Step-by-step explanation:

GIVEN

Length Of Lane = 150 m = 15000 cm

Breadth Of Lane = 9 m = 900 cm

Length Of bricks = 22.5 m

Breadth Of bricks = 7.5 m

___________________________

TO FIND

The number of bricks required

___________________________

We know that,

Here,

Arra Of Rectangle = Area Of Lane

Area Of Rectangle = Length × Breadth

Area Of Rectangle = 15000 × 900

Area Of Rectangle = 13500000

Area Of Rectangle = 13500000 m²

Area Of Lane = 13500000 m²

___________________________

We know that,

Here,

Arra Of Rectangle = Area Of Bricks

Area Of Rectangle = Length × Breadth

Area Of Rectangle = 22.5 × 7.5

Area Of Rectangle = 168.75

Area Of Rectangle = 168.75 cm²

Area Of Bricks = 168.75 cm²

___________________________

We know that,

Number Of Bricks = Area Of Lane / Area Of Bricks

Number Of Bricks = 13500000 / 168.75

Number Of Bricks = 80000

Number Of Bricks = 80000 Bricks

The number of bricks required is 80000 bricks