Question

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

Answer 1

dimension of lane = 180 x 5 = 900 meters square

dimension of a brick = 20 x 15 = 300 cm square = 0.03 cm square

no. of bricks required= 900 / 0.03 = 30000

price for 1000 bricks = Rs 750

price for 30000 bricks = Rs 750 x 30000/1000

                                      = Rs 22500