Question

Length and width of a field are in the ratio 5 : 3.If the width of the field is 42m, then its length is......

Answer 1

68 is the answer of this question

Answer 2

$\frac{l}{w} = \frac{5}{3} \\ \frac{l}{42} = \frac{5}{3} \\ l = \frac{5 \times 42}{3} = 70m$