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Question
A rectangular hall of 40m by 24m is covered with carpets of size 6m x 4m. Find the number of carpets required to cover the hall.
Solution
The area of a rectangle with length l and breadth b = l x b
The area of a rectangle with length 40m
and breadth 24m
= A
= 40 x 24m2
The area of the rectangular carpet with sides 6m and 4m
= a
= 6 x 4
Number of carpets required to cover the floor completely
= `"A"/"a"`
= `(40 xx 24)/(6 xx 4)`
= 40.
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