Question

Given aera of rectangle is 460.length is incresaed by 15%of breadth .then find the breadth of a rectangle

Answer 1

let breadth be x
length=x+15/100*x
=x+3x/20
=23x/20
area=l*b
460=23x/20*x
460*20=23x^2
460*20/23=x^2
20*20=x^2
20=x