Question

the ratio of length and width of a park is 5:4 ,find its length if its width is 100m

Answer 1

let the length be 5x and width be 4x

since width is given,

4x = 100m
x = 100/4 = 25m

Hence the length is 5x = 5 × 25m = 125m

Answer 2

5*25/4*25=125/100
so 125m is the length of park