the length breadth and height of a room is 5 metre ,4metre and 3 metre. the cost of whitewashing it's 4 walls was at the rate of rs 7.50 per metre square is
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Step-by-step explanation:
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Step-by-step explanation:
Length (l) of room = 5m
Breadth (b) of room = 4m
Height (h) of room = 3m
It can be observed that four walls and the ceiling of the room are to be white washed.
Total area to be white washed = Area of walls + Area of ceiling of room
= 2lh+2bh+lb
= [2×5×3+2×4×3+5×4]
= (30+24+20)
= 74
Area = 74 m2
Also,
Cost of white wash per m2 area = Rs.7.50 (Given)
Cost of white washing 74 m2 area = Rs. (74×7.50)
= Rs. 555
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