The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 run…

The mean of 9 observation is 16. One more observation is included and the new mean becomes 17. The 10<sup>th</s…

A batsman in his 12<sup>th</sup> innings makes a score of 63 runs and there by increases his average score b…

The average temperature for the first four days of a week is 40.2° C and that of the last four days is 41.3° C. …

The average age of 30 students in a class is 15 years. If 6 students of this class have the average age of 16 years, the…

The average marks of four subjects is 120. If 33 was misread as 13 during the calculation, what will be the correct aver…

Which one of the following numbers can be removed from the set S = {0, 2, 4, 5, 9} without changing the average of set S…

The average monthly income of P and Q is Rs. 6000; that of Q and R is Rs. 5250; and that P and R is Rs. 5500. What is P&…