PSAT Math Grid-Ins Question 84: Answer and Explanation
Question: 84
| Apples | Berries | Pears | Oranges | Exotics | Total | |
|---|---|---|---|---|---|---|
| Frankie | 30 | 32 | 22 | 18 | 13 | 115 |
| Bao | 18 | 28 | 27 | 24 | 15 | 112 |
| Craig | 37 | 31 | 18 | 31 | 22 | 139 |
| Ekanta | 28 | 35 | 32 | 15 | 24 | 134 |
| Total | 113 | 126 | 99 | 88 | 74 | 500 |
Frankie, Bao, Craig, and Ekanta are selling boxes of fruit to raise money for a senior class trip. The summary of their sales is provided in the table above. The students decide to give away a free box of fruit to someone who purchased from them. Assuming no buyers purchased more than one box of fruit, what is the probability that the randomly selected buyer had previously purchased a box of berries or exotic fruit?
Correct Answer: 2/5 or .4
Explanation:
2/5 or .4
Difficulty: Easy
Getting to the Answer: According to the table, the students sold 126 boxes of berries and 74 boxes of exotic fruits. Add these together and divide by the total boxes sold to get 
. Grid in 2/5 or .4.
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