Question

Find the length of a rectangle whose perimeter is 780m and breadth is 95m

Answer 1

let length be x
breadth = y
perimeter = 2(x+y)
780= 2(x+95)
390= x+95
x = 390- 95
x=295m

Answer 2

let the length be x
perimeter=780m
breadth 95 m

perimeter=2(L+B)
= 2(x+95)=780
=2x+190=780
=2x=780-190
=2x=590
=x=590/2
=x=295.

hence,
length is 295 m