Averages Quiz 3 (10 MCQs)

Quiz Instructions

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1. The average weight of 40 student of a class is 64 kg, when 5 new student join the class average weight become 62kg.what is average weight of 5 new student?
2. 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?
3. If the average (arithmetic mean) of 2x and 4x is 18, what is the value of x?
4. Angel wants to know the average of her grades in Science, Math and English. Which of the following function and formula she should use to get the answer?
5. What is the average speed of the completed flight in kilometers per hour?
6. What is the average of the following numbers: 12, 15, 20, 25?
7. If it took a player 336 at-bats to get 258 hits, what would be his batting average?
8. The mean weight of 8 girls in a group is 35 kg. The individual weights of seven of them are 35kg, 28kg, 43kg, 25kg, 33kg, 51kg, and 22kg. Find the weight of the 8th girl.
9. On the first 5 math tests, Katie scored an average of 87. On the last 3 math tests, she scored an average of 94. What was Katie's overall average grade?
10. Anita played 3 games and had a mean score of 140. Tariq played 2 games and had a mean score of 90. What was the mean of the scores for all 5 of these games?