Question

The length and breadth of a rectangle is in the ratio 5:2.find the length if the breadth is 20 cm

Answer 1

Ratio of length and breadth=5:2
Ratio of Breadth =2x=20cm=x=20/2=10cm
Then length =5x=5*10=50cm

Answer 2

Answer:

b =12

Step-by-step explanation:

L:B=5x:2x

    =5x/2x

    L/b=5/2

    L/20=5/2

    20 x 5 =2 x L

    100 = 2L

   L =100 /2

    L=50