Average MCQs

The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. The highest score of the player is

The average of thirteen numbers is 47. The average of the first three numbers is 39 and that of next seven numbers is 49. The 11^th number is two times the 12^th number and 12^th number is 3 less than the 13^th number. What is the average of 11^th and 13^th numbers?

The average weight of first 11 persons among 12 persons is 95 kg. The weight of 12^th person is 33 kg more than the average weight of all the 12 persons. The weight of the 12^th person is :

If the average of m numbers is n² and that of n numbers is m² , then the average of (m + n) numbers is-

A batsman in his 12^th innings makes a score of 63 runs and there by increases his average score by 2. What is his average after the 12^th innings ?

A batsman makes a score of 87 runs in the 17^th inning and thus increases his average by 3. Find his average after 17^th inning.

The average of x₁, x₂, x₃ and x₄ is 16. Half the sum of x₂, x₃, x₄ is 23. What is the value of x₁?

If average of 20 observations x₁, x₂, . . . . . x₂₀ is y, then the average of x₁ - 101, x₂ - 101, x₃ - 101, . . . . . x₂₀ - 101 is :

The average (arithmetic mean) of 3³⁰, 3⁶⁰ and 3⁹⁰ is :