the length breath and height of a room are 5m 4m and 3m respectively find the cost of white washing the walls of the room and the ceiling at the rate of Rs.7.50 per sq.m
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Answer:
l=5m
b=4m
h=3m
area of wall =2h(l+b)
=2*3(4+5)
=6*9
=54sq m
area of cieling =l*b
=5*4
=20sq m
total area =area of cieling +area of cieling
=54 + 20
=74sq m
cost of white wishing =
=50*74
=3700
rs=3700
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