Math, asked by ajeetachheja038, 4 months ago

9. A room is 8 m long, 6 m broad and 5,5 m high. It has one door of dimensions 2.5 mm by 2 m and 2
windows each of dimensions 1.5 m by 1 m. Find the cost of whitewashing the walls at 33.20 per sq. m. .​

Answers

Answered by rautela06
3

Step-by-step explanation:

area of four walls = 2h(l+b)

=2×5.5(8+6)

=11×14

=154 m²

area of door =2.5×2

=5m²

area of 2 windows =2×1.5×1

=3m²

area to be whitewashed= 154 - ( 5+3 )

=146 m²

cost= 33.2×146

=Rs. 4847.20

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