7 chains costs Rs 714 . Find the cost of 83 chains.

There are 30 girls and 20 boys in a class. Express the statement in terms of ratio.

If    then the value of x is equal to

Convert the following to simplest form :  3 minutes to 45 minutes

A radio set costs Rs. 122.75. Then the cost of 5 such radio sets is___________

 Compare the following ratios: 11 : 14 and 2 : 5

Mamta and Ravya are two sisters having pens 28 and 42 respectively. Compare their pens .

Ishu and Nishu are two sisters having pencils 55 and 99 respectively. Compare their pencils .

Sumit has 24 red marbles and 48 green marbles. How many times does Sumit has red marbles as compared to green marbles?

Which of the following ratios are equivalent:

(1)  14:21

(2)  2:3

(3)  1:1.5

(4)  6:9