Question

A lane 180, m long and 5 m wide is to be paved with bricks, of length 20 cm and breadth 15 cm.
find the cost of bricks that are required, at the rate of Rs.750 per thousand.




With easy explanations ​

Answer 1

Answer:

300 bricks are required and cost of bricks is Rs.225

Explanation:

lane is in a rectangular shape

pavement of bricks means area of lane , which is l*b

l= 180m

b = 5m

area= 180*5= 900m or 90000cm

Brick is also in rectangular shape

l = 20 cm

b = 15 cm

area = 20*15= 300 cm

Number of bricks required = 90000cm/300cm

= 300

Cost of thousand bricks = Rs.750

Cost of one brick = 750/1000

Cost of 300 bricks = 750/1000 *300= Rs.225