Question

The ratio of the length to the breadth of a rectangle is 5:7.If the breadth is 21cm,find its length

Answer 1

Answer:

length=15cm

Step-by-step explanation:

let sides be x

length=5x,breadth=7x

but breadth =21cm

therefore,

7x=21

x=21/7

x=3

thus,

length=5×3

length=15cm.