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Ques. Average age of girls in a class is 16 years. If the average of the boys inclass is also added, the average becomes 15.5 years. If there were 20 boys inthe class with average age 15 years, how many girls were there in the class?A) 15B) 40C) 20D) 25E) 30 |
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Answer» Answer: 20 Step-by-step EXPLANATION: |
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