Pete has an average score exactly x points on 4 equally weighted tests. How many points higher than x must Pete score on the 5th equally weighted test to raise his average score after the 5th test to `x + 2` points?

Jeff has taken 6 of 1 equally weighted math tests this semester, and he has an average score of exactly 82.0 point. How many points does he need to earn on the 7th test to bring his average score up to exactly 83 points?

A batsman in his 12th innings makes a score of 65 and thereby increases his average by 2 runs. What is his average after the 12th innings?

In a class of 10 boys and 15 girls, the average score on a biology test is 90. If the average score for the girls is x, what is the average score for the boys in terms of x ?

In a test, it is possible to have a negative score. If Krishna's score is 15, what is his new score if he loses 20 points?

Kalino earned 85, 95, 93 and 80 points on the 4 tests, each worth 100 points, given so far this term. How many points must he earn on his test, also worth 100 points, to average 90 points for the 5 tests given this term?

The average score of Dhoni after 48 innings is 48 and in the 49th innings Dhoni scores 97 runs.In the 50th innings the minimum number of runs required to increase his average score by 2 than it was before the 50th innings:

The average score of Dhoni after 48 innings is 48 and in the 49th innings Dhnoi scores 97 runs. In the 50th innings the minimum number of runs required to increase his average score by 2 than it was before the 50th innings :

Mela earned scores of 75, 70, 92, 95 and 97 points (a total of 429 points) on the first 5 tests in Economics II. Solving which of the following equations for s gives the score he needs to earn on the 6th test to average exactly 85 points for all 6 tests?