Question

a lane 150m long and 8 m wide, is to be paved with bricks, each measuring 22.5 cm by
7.5cm. Find the number of bricks required.​

Answer 1

Answer:

Number of bricks required to fill the lane is 71111

Step-by-step explanation:

Area of the lane = 150 x 8= 1200 sq meter

Area of the bricks = 0.225 x 0.075= 0.016875 sq meter

Number bricks required = Area of the lane / area of the brick

= 1200/ 0.016875

=71111 bricks

number of bricks required to fill the lane is 71111

Answer 2

Answer:

2666

Step-by-step explanation:

Length = 150 m or 15000cm

Breadth= 8m or 800 cm

Now, area of the lane = (15000×800) cm sq

Lengh of brick = 22.5 cm

Breadth of brick = 7.5 cm

Area of each brick = (22.5× 7.5) cm sq

Therefore, no. of bricks req

= area of lane/area of each brick

=15000×800/22.5×7.5

= 15000×800×100/225×75

=8000/3 or 2666.6

EDIT: Answer may be wrong but the process is right so no negative comments please.