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Question
The average weight for a group of 20 women is 130 pounds. If the average weight for 75% of these women was 140 pounds, what was the average weight, in pounds, for the rest of the women?
100
110
120
135
None of these
ANSWER : 1
Descrption
<p>Total weight of 20 women = 20 x 130 = 2600 pounds</p> <p>Total weight of 75% of 20 = 15 women = 15 x 140 = 2100 pounds</p> <p>Total weight of the rest 5 women = 2600 - 2100 = 500 pounds</p> <p>Then, the average weight of these 5 women = 500/5 = <strong>100 pounds.</strong></p>
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