Question

The ratio of the length and breadth of a rectangle is 5:3. Find its area, if its perimeter is 48 m.

Answer 1

Answer:

l:b=5:3

perimeter=2(l+b)

=2(5x+3x)

=2(8x)

=16x=48m

=x=48/16=3.l=5×3=15m,b=3×3=9m

area=l×b

=15×9=135m^2.

Answer 2

Answer:

let 5x and 3x be as length and breadth respectively

perimeter = 48 m

So,5x+3x+5x+3x = 48

16x = 48

x = 48/16

x = 3

therefore, length = 5 * x = 5 * 3 = 15 m

Breadth = 3 * x = 3 * 3 = 9 m

Step-by-step explanation: