Question

The ratio of length of field to its width is 5:3 Find its length if the width is 42 meters .

Answer 1

Length $=5:3$

suppose the length and width of the field be $5xm$ and $3xm$ respectively

Width $=42m$

$3x=42$

$x=\frac{42}{3}=14$

$\therefore length=5x=5\times 14=70m$