Average - Grade 4

Sam scored 98, 25, 105, 62 and 65 run in 5 matches. What was the average score of these matches?

4 businessmen invested $20,000, $25,000, $16,000 and $3,000 respectively. What was their average investment?

The temperature of a city during a week was 35° C, 36°C, 34°C, 38°C, 40°C, 39°C and 44°C. What was the average daily temperature of the town for the week?

Daniel receives the following scores for his tests: 61, 64, 66, 69 and 77. The result for his final test has been released yet. But he knows that the average score for all of his tests is 68. What is the score of his final test?

A car drove 2 hours at a speed of 100 km per hour and 3 hours at a speed of 50 km per hour. What was the average speed of the car during this trip?

Peter has taken 3 math tests so far this semester with an average score of 60 points per test. If he gets a score of 100 points for his next test, what will his new average score be?

The average mass of three people in a lift was 60 kg. After another person boarded the lift, the average mass became 57 kg. What was the mass of the last person?