The average weight of five persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in…

The average temperature on Wednesday, Thursday and Friday was 25°. The average temperature on Thursday, Friday and S…

A student finds the average of ten 2 digits numbers. While copying numbers, by mistake, he writes in number with its dig…

The average age of 3 children in a family is 20% of the average age of the father and the eldest child. The total age of…

What is the average of the first six (positive) odd number each of which is divisible by 7?

In a one-day cricket match the captain of one of the teams scored 30 runs more than the average runs scored by the remai…

The average of the three numbers x, y and z is 45. x is greater than the average of y and z by 9. The average of y and z…

The average weight of a group of 20 boys was calculated to be 89.4 kg and it was later discovered that one weight was mi…