Question

the lenghth and the breadth of a room are 480 cm and 360 cm. find the ratio of lenghth and breadth of the room.​

Answer 1

l= 480cm
b=360cm
l:b=480:360
=48:36
=4:3
Therefore your answer is 4:3

Answer 2

Answer:

Let the length and breadth of a rectangle be x,y respectively

Given Ratio of length and breadth of the rectangle is 3:1

⟹x:y=3:1⟹

y

x

=

1

3

⟹x=3y

Perimeter of a rectangle is 36 cm

⟹2(x+y)=36

⟹3y+y=18⟹y=

4

18

=4.5

⟹x=3y=3×4.5=13.5

The length and breadth of a rectangle is 4.5 cm,13.5 cm respectively