Question

18. The ratio of the length and breadth of a rectangular table cover is 2:5. If the perimeter of the sheet is 140cm, find its dimensions.​

Answer 1

Answer:

let the common ratio be x.

length = 2x

breadth=5x

perimeter =2(l+b)

140=2(2x+5x)

140/2=7x

70=7x

x=70/7=10

length=2x=2*10=20cm

breadth=5x=5*10=50cm