The average age of 20 students in a class is 15 years. The average of 16 students is 12. What is the average age of remaining 4 students ? [] A) 34 B) 45 C) 27 D) 26
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Answer:
I think is 14
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The average age of 20 students in a class is 15 years. The average of 16 students is 12. What is the average age of remaining 4 students ? [] A) 34 B) 45 C) 27 D) 26
Answered by
0
16×3+15×4 ÷ 4 = 27
answer: 27
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