The average of 10 numbers is 14. If each number is multiplied by 6 then what will be the new average?

Six tables and twelve chairs were bought for ₹ 7,800. If the average price of a table is ₹750, then the average price of a chair would be

The mean of five numbers is 18. If one number is excluded, their mean is 16. The excluded number is:

The average of four consecutive even numbers is 9. Find the largest number. 

The average age of a husband and wife, who were married 4 years ago, was 25 years at the time of their marriage. The average age of the family consisting of husband, wife and a child, born during the interval is 20 years today. The age of the child is:

 In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son? 

Find the average of 1.11, 0.01, 0.101, 0.001, 0.11

The average of twenty-five numbers is 54. The average of the first 13 numbers and that of the last 13 numbers is 52.8 and 62.2, respectively. If the 13th number is excluded, then what is the average of the remaining numbers (correct to one decimal place)?