Question

A lawn is 80m long and 60m wide. there is swimming pool of length 20m*6m in this lawn what will be the cost of putting grass in the remaining pool of the field at Rs 30 per square metre.

Answer 1

area of lawn is 80*60=4800
area of pool is20*6= 120
area of grass=4800 —120
= 4680m*m
cost= Rs30* 4680
Rs14040

Answer 2

this is easy like this

80 X 60=4800
4800m is area of pool

4800/120=40

cost is then
30 X 40=Rs 1200