Question

A classroom is 7m long,6.5m wide,&4m high .it has one door measuring 3×1.4m and three windows measuring 2×1m .The interior walls are to white washing the contractor charges rs7.25 per m^2 .Find the cost of white washing the interior walls of classroom

Answer 1

TSA of room = l×b×h=199.0m square
area of door =l×b=4.2m sq
area of 3 windows= 3×l×b=6m sq
area to be painted =199-(4.2+6)=194.2
cost of white washing = 194.2×7.25
Rs = 1407.950 rs