Question

I am rectangle. My perimeter is 40 cm. My length is 3x and breadth is x. Find the value of x.

Answer 1

according to question

2 ( x + 3x) = 40
= 2 * 4x = 40
= 8x = 40
= x = 5.

Answer 2

length=3x
breadth=x
perimeter=2(l+b)=40
40=2(3x+x)
4x=40/2
4x=20
x=20/4
=5

therefore value of x is 5...