Question

A room 8 m long, 6 m wide and 4 m high has two windows each 1.5 m x 1 m and two
doors ench 2.2 m x 1.2 m. Find the cost of whitewashing the walls at ₹ 3 per sq. metre.​

Answer 1

Answer:

Area of walls = 112 sq. m

Area of 2 windows = 3 sq. m

Area of doors = 2.64 sq. m

Area of white washing of walls = area of walls - ( area of windows + area of door)

= 112 - ( 3 + 2.64 )

= 112 - 5.64

= 106.36 sq. m

Cost of white washing = 3 x 106.36

= 319.08rs.