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What is the age of Kunal?

Statement I - Four years ago, the age of Kunal was three-fourth his present age.

What is the profit percent or loss percent incurred in the transaction?

I. 5% discount is given on the marked price.

Find the area of a rhombus.

A. Sum of the squares of the diagonals is 256 m².

B. Perimeter of the rhombus is 32 m.

What is the value of a two digit number?

Statement I:  The sum of the digits of the number is 9.

By selling a product for Rs.520 how much profit was earned?

I. 12% discount on the market price.

II. The profit was one- third of the cost price.

How many students passed in first class?

I. 75% of the students who appeared in the examination have passed in first or second or third class.

In each of the following questions, read the given statement and compare the Quantity I and Quantity II on its basis.  

There are 7 people in a group. Average age of the group decreases by 5 when two more people join the group. Find the average age of the new group.