Question

find the length of a lane 5m wide which can be covered by 50,000 bricks of size 22cm by 15cm?

Answer 1

area of a brick = 0.22×0.15 = 0.033 m^2
so, total area =50000×0.033= 1650 m^2
hence total area of lane = length if lane × width = l×5
1650=l× 5
l = 1650/5=330 m