Question

the area of a courtyard is 375 squre metres .find the cost of covering it with gravel to a height of 1 cm ,if the gravel cost Rs.6.40 per cubic metre.

Answer 1

Volume of cuboid = length × breadth × height
l×b =375 sq. cm
then, V= 375 × 1
=375 cm cube
cost =375 × 6.40 = 2400