Question

The dimensions of a room are (9mX8mX6.5 m). It has one door
of dimensions (2 m X 1.5 m) and two windows, each of dimensions
(1.5 m X 1 m). Find the cost of whitewashing the walls at * 25 per
square metre.​

Answer 1

area of room=2(72+52+58.5)

=2(182.5)

=365m^2

area of door=2*1.5

=3

area of two windows=2(1.5)

=3

so required area =365-6

=359m^2

cost of whitewashing=359*25

=8975Rs

#avi