Question

the ratio of the length of a school ground to its width is 5 : 2. Find its length ,if the width is 40 metres.

Answer 1

let the ratio be 5x +2x
if 2x is 40 then X= 20
therefore length is 100
area = l×b
area = 20×100= 200

Answer 2

Answer:

100

Step-by-step explanation:

Let the ratio no. be x so,5x + 2x

2x =40

:. x=40/2

x=20

5x =length

so,5x =5×x  :. 5 × 20 =100

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