Question

The length of rectangular field is less than twice it's breadth by 5m it's area is 700m find length and breadth

Answer 1

let the length be 'l', breadth be 'b', according to the given statements, "l=2b-5". the area of the field is 700. so, lxb=600.but l=2b-5. so, (2b-5)x(b)=700. 2b^2-5b-700=0. you may solve the quadratic equation then which will give you the value of b. now put the value of b in the equation 'l=2b-5' and you'll get the value for l as well.