Averages and Rounding Practice Questions
GMAT Practice Questions – Averages and Rounding
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Question 1 of 10
1. Question
The average of six numbers is 4. If the average of two of those numbers is 2, what is the average of the other four numbers?
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Question 2 of 10
2. Question
Kate got a 56 on her first math test. On her second math test, she raised her grade by 12%. What was her grade?
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Question 3 of 10
3. Question
A skyscraper is 548 meters high. The building’s owners decide to increase its height by 3%. How high would the skyscraper be after the increase?
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Question 4 of 10
4. Question
Janet makes homemade dolls. Currently, she produces 23 dolls per month. If she increased her production by 18%, how many dolls would Janet produce each month?
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Question 5 of 10
5. Question
A class contains an equal number of boys and girls. The average height of the boys is 62 inches. The average height of the all the students is 60 inches. What is the average height of the girls in the class?
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Question 6 of 10
6. Question
Elijah drove 45 miles to his job in an hour and ten minutes in the morning. On the way home in the evening, however, traffic was much heavier and the same trip took an hour and a half. What was his average speed in miles per hour for the round trip?
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Question 7 of 10
7. Question
If Joey and Katrina hike an average of 3 miles per hour, about how long will it take them hike both the Beaverton Falls trail (7.25 miles) and the Copper Creek trail (4.75 miles)?
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Question 8 of 10
8. Question
A pasta salad was chilled in the refrigerator at 35° F overnight for 9 hours. The temperature of the pasta dish dropped from 86° F to 38° F. What was the average rate of cooling per hour?
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Question 9 of 10
9. Question
Rachel spent $24.15 on vegetables. She bought 2 lbs of onions, 3 lbs of carrots, and 1 1/2 lbs of mushrooms. If the onions cost $3.69 per lb, and the carrots cost $ 4.29 per lb, what is the price per lb of mushrooms?
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Question 10 of 10
10. Question
A roast was cooked at 325 °F in the oven for 4 hours. The internal temperature rose from 32 °F to 145 °F. What was the average rise in temperature per hour?
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