Question

A lane 150 cm long and 9m wide is to be paved with bricks each measuring 25 cm by 12cm.Find

the number of bricks required to pave the lane.​

Answer 1

Answer:

no. of bricks required= 450

Step-by-step explanation:

area of lane = 150 × 900

= 135000

area of each brick = 25×12

= 300

so. no. of bricks required= 135000/300

= 450

Answer 2

Step-by-step explanation:

Dimension of a lane = 150cm × 9m

area= 150cm× 9m= 150cm×900cm

dimension of a brick= 25cm×12cm

Bricks required= area of a lane/area of a brick

= 150cm ×900cm

25cm× 12cm

= 450