2014 AMC 10B Problems/Problem 6
Contents
Problem 6
Orvin went to the store with just enough money to buy balloons. When he arrived, he discovered that the store had a special sale on balloons: buy
balloon at the regular price and get a second at
off the regular price. What is the greatest number of balloons Orvin could buy?
Solution
Since he pays the price for every second balloon, the price for two balloons is
. Thus, if he had enough money to buy
balloons before, he now has enough to buy
.
Solution 2
Suppose each balloon costs 3 dollars. Therefore, Orvin brought 90 dollars. Since every second balloon costs dollars, Orvin gets 2 balloons for 5 dollars. Therefore, Orvin gets
See Also
2014 AMC 10B (Problems • Answer Key • Resources) | ||
Preceded by Problem 5 |
Followed by Problem 7 | |
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All AMC 10 Problems and Solutions |
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