The length of a rectangle is 5 times of its breadth. If the breadth is 10 cm, then what is the perimeter of the rectangle?

120 cm

The length of a rectangle is 5 times of its breadth means,

Let the breadth = x

Then the length will be = 5x

So, the breadth = 10 then the length will be = 50

Perimeter of the rectangle = 2 (length + breadth)

= 2 (50 + 10)  = 120cm