GreenlightTestPrep wrote:
In a barrel full of apples, 45% of the apples weigh more than 81 grams, and 81% of the apples weigh less than 145 grams. What percent of the apples in the barrel weigh more than 81 grams but less than 145 grams?
Let's say there are
100 apples in the barrel.
45% of the apples weigh MORE THAN 81 gramsThis means 55% of the apples weigh LESS THAN OR EQUAL to 81 grams
In other words,
55 apples weigh LESS THAN OR EQUAL to 81 grams81% of the apples weigh LESS THAN 145 gramsThis means 19% of the apples weigh MORE THAN OR EQUAL to 145 grams
In other words,
19 apples weigh MORE THAN OR EQUAL to 145 gramsTo summarize, we have:
....
55 apples....
81 grams.............
145 grams...
19 apples...
55 +
19 = 74
We've now accounted for 74 apples, which means the remaining
26 apples must be BETWEEN 81 grams and 145 grams.
Answer: 26
Cheers,
Brent
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Brent Hanneson - founder of Greenlight Test Prep