A room 20 m long, 15 m wide and 4 m high, has two doors each of dimensions 2.5
mx 2 m windows, each of dimensions 1.5 mx1 m. Find the cost of white washing
the walls of the room from inside at rate of Rs 2 per sq metre.
Answers
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The cost is rupees 103.5
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area of 4 walls =2h(l+b)
=2×4(20+15)m^2
=280m^2
Area of doors=2×2.5×2m^2
10m^2
Area of windows= 4×1.5 ×1m^2
=6m^2
Remaining area=(280_16)m^2
264m^2
cost =RS.2 ×264
=RS.528
Step-by-step explanation:
Answer is RS.528
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