In a set of three numbers, the average of first two numbers is 2, the average of the last two numbers Is 3 and the average of the first and the last numbers is 4. What is the average of three numbers?
2
3
2.5
3.5
The average first five multiples of 3 is:
33
17
9
none
If the age of lrfan's father is three times more than that of Irfan's and the sum of ages (in years) of both people is equal to the perfect square of 8, then what will be the age of lrfan?