Question

The length and breadth of a rectangular field is in the ratio 4:3.if the area is 3072m square,find the cost of fencing it at the rate of Rs4 per metre

Answer 1

let length be 4x.and breadth =3x.
4x× 3X=3072

${12x}^{2} = 3072$
${x }^{2} = 3072 \div 12$
${x}^{2} = 256$
${x}^{2} = \sqrt{256}$
X=14

4×14=56



plrase mark in brainlist and thank