Find the average of the numbers: 12, 5, 0, 13, 10

A cricketer's scores in 5 matches are: 40, 50, 60, 80, 100. What is his average score?

A man’s average monthly salary for 10 months is $2000. How much does he need to earn in the next month to increase his average by $100?

Find the average of 24, 30, 36, and 42.

What is the average of all prime numbers between 30 and 50?

The average of runs of a cricket player in 10 innings was 32. How many runs must he make in his next innings to increase his average by 4?

The average of 20 numbers is zero. What is the maximum number of numbers that can be greater than zero?

The average weight of 8 students is 60 kg. If the weight of one student is excluded, the average weight decreases by 0.5 kg. What is the weight of the excluded student?

The average score of 20 students is 75. If 5 students scored an average of 80, what is the average score of the remaining 15 students?

The average temperature of a city over 5 days was 28°C. If the temperature on the first 4 days was 27°C, 29°C, 26°C, and 30°C, what was the temperature on the 5th day?