If the arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is :

If the average of 5 consecutive integers is x then, find the average of next to next 5 consecutive integers.

A, B, C and D are four consecutive even numbers respectively and their average is 65. What is the product of A and D?

If the average temperature of first four days of the week was 39°C and the average temperature of the week was 40&de…

Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of …

The average of 6 numbers is 7. The average of three numbers of them is 5. What will be the average of remaining numbers?

There are three categories of jobs A, B and C. The average salary of the student who got the job of A and B categories i…

Distance between two stations A and B is 778km. A train covers the journey from A to B at 84km per hour and returns back…