When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is …

The average age of 40 students of class is 18 years. When 20 new students are admitted to the same class, the average ag…

The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these…

A student obtained 60, 75 and 85 marks respectively in three monthly examinations in Physics and 95 marks in the final …

Five years ago the average age of A, B, C, D was 45 years. By including X the present average of all the five is 49 year…

The average age of seven boys sitting in a row facing North is 26 years. If the average age of the first three boys is 1…

The average of five numbers is 306.4. The average of the first two numbers is 431 and the average of the last two number…

Out of nine persons, 8 persons spent Rs. 30 each for their meals. The ninth one spent Rs. 20 more than the average expen…