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.

Answer 1

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.