The average age of Ram and his two children is 17 years and the average age of Ram's wife and the same children is 16 ye…

The average age of four brothers is 12 years. If the age of their mother is also included, the average is increased by 5…

The mean of 100 items was 46. Later on it was discovered that an item 16 was misread as 61 and another item 43 was misre…

The average daily income of 7 men, 11 women and 2 boys is Rs. 257.50. If the average daily income of the men is Rs. 10 m…

Nine persons went to a hotel for taking their meals. Eight of them spent Rs.12 each on their meals and the ninth spent R…

In a family of 5 members, the average age at present is 33 years. The youngest member is 9 years old. The average age of…

The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole clas…

A student finds the average of 10, 2 digits numbers. If the digits of one of the numbers interchanged, the average incre…