Question

a hall is 16m long, 14 m wide and 10 m high. There are four windows 1.3 ×1.4 and two doors 2m ×1m .find the cost of white washing the walls at rupee 10 per square metre and painting the doors and windows at rupees 16 per square metre

Answer 1

area of he hall=16×14×10
=2240msq
area of 4 windows =1.3×1.4 ×4
=7.28msq
area of 2 doors =2×2×1
=4msq
area to be white washed=2240-(7.28+4)
=2,236.72msq
cost =2,236.72×10
=rs22367.2
cost of painting=(7.28+4)×16
=rs180.48