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1. 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?
- A. 100
- B. 100
- C. 100
- D. 100
Answer: Option A
Explanation:
Total weight of 20 women = 20 x 130 = 2600 pounds
Total weight of 75% of 20 = 15 women = 15 x 140 = 2100 pounds
Total weight of the rest 5 women = 2600 - 2100 = 500 pounds
Then, the average weight of these 5 women = 500/5 = 100 pounds.
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