Abhi is painting the wallsand celing of a cuboidal hall with length,breadth and height of 15m,10m and 7m respectively.From each can of paint 100 square cm of area is painted. How many cans of paint she need to paint the room?
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area of four walls of a cuboid = 2(l+b)×h
2(15+10)7
2(25)7
50×7
350sqm
area of ceiling = l×b
15×10
150sq m
total area of the room will be = 350+150
= 500msq
can of paint needed = 500×100 ÷ 100
50000÷ 100
500 cans
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