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Question

Daniel is painting the walls and ceiling of a cuboidal hall with length, breadth and height of 15m,10mand7m respectively. From each can of paint 100m2 of area is painted. How many cans of paint will she need to paint the hall?

A
5cans
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B
6cans
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C
8cans
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D
None of these
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Solution

The correct option is

A

5cans



Given: l=15m,b=10m,h=7m

Total area to be painted = 2(l+b)h+lb as bottom can't be painted.


= 2(15+10)×7+15×10

= 350+150=500m2

Now, number of paint cans required = 500m2100m2=5 cans

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