The average of 20 students is 12 years, if the teacher's age is included, average increases by one. The age of the teach…

The average price of 10 books is Rs.12 while the average price of 8 of these books is Rs.11.75. Of the remaining two boo…

The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. The a…

The average weight of first 11 persons among 12 persons is 95 kg. The weight of 12<sup>th</sup> person is 33…

A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the…

Average score of a class of 60 students, in an exam, was 43. Average score of the students who had passed is 52 and the …

The average temperature on Tuesday, Wednesday, and Thursday was 41 degrees, and on Wednesday, Thursday and Friday was 40…

If the mean of 4 observations is 20, when a constant 'c' is added to each observation, the mean becomes 22. The value of…