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

The average weight of 45 students in a class is 52 kg. Five of them whose average weight is 48 kg leave the class and ot…

The average of some natural numbers is 15. If 30 is added to the first number and 5 is subtracted from the last number t…

The average of two numbers is 6.5 and square root of their product is 6. What are the numbers?

In a 20 over match, the required run rate to win is 7.2. If the run rate is 6 at the end of the 15th over, the required …

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

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

A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If had scored 92 points, the av…