a room is 6m long,5m broad and 4m high.Find the cost of preparing 4 walls using a paper sheet of 50cm width at the rate of 75 paisa per meter.
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Step-by-step explanation:
R.E.F image
Area of cuboid (room) =2bh+2hl
=(2×20)+(2×24)
=88m
2
Area of paper =lb
=l×0.5m
=0.5lm
2
Area of cuboid = Area of paper
88=0.5l⇒
l=176m
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Answer:
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