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

The average of marks in Mathematics for 5 students was found to do 50. Later, it was discovered that in the case of one …

The average age of mother and her six children is 12 years, which is reduced by 5 years if the age of mother is excluded…

There are three positive numbers. One third of the average of all the three numbers is 8 less than the value of the high…

The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.…

The average salary, per head, of all the workers of an institution is Rs. 60. The average salary of 12 officers is Rs. 4…

The average monthly income of A and B is Rs. 14000, that of B and C is Rs. 15600 and A and C is Rs. 14400. The monthly i…

The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If an…