Averages
- What is the average of
,
,and 
- The following table shows the selling price of Brand X pens during a five-year period. What was the average selling price of a Brand X pen during this time?
YEAR 1990 1991 1992 1993 1994
PRICE $1.95 $2.00 $1.95 $2.05 $2.05
Probability and Counting
- Anthony draws four cards from a deck and gets a 7, 8, 9, and 10.What is the probability that the card on top of the deck of the remaining 48 cards is a 6 or a queen?
Distance
- The hare and the turtle were in a race. The hare was so sure of victory that he started a 24-hour nap just as the turtle got started. The poor, slow turtle crawled along at a speed of 20 feet per hour. How far had he gotten when the overly confident hare woke up? The length of the race course was 530 feet, and the hare hopped along at a speed of 180 feet per hour. (Normally, he was a lot faster, but he sprained his lucky foot as he started the race and could only hop on one foot.) Could the hare overtake the turtle and win the race? If not, how long would the course have to be for the race to end in a tie?
Solutions
- 4
- 165
- 360
- 65
- 220
- $88.83
- $320.90
- 149.76
- $1.57
- $25.76
- 3.8 cups
- 31.25
- 288

- $2

- 480 feet, no, 540 feet
- 1
-
2
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From Practical Math Success in 20 Minutes A Day. Copyright © 2009 by LearningExpress, LLC. All Rights Reserved.
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