Question

The length height and breadth of a classroom is 12m, 5m and 3m find the cost of white washing of room including ceiling at rs 3.50 per square metre

Answer 1

Answer:

Total surface area =lb+bh+lh

=12*5+5*3*12*3

=60+15+36

=111m^2

cost of white washing =111*3.50

=rs.388.5