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The average of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 14 students?
- A15 years
- B17 years
- C18 years
- D19 years
Correct answer: D
Discussion 1
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CCommunity
19 years
Sum of the ages of 14 students
= (16 * 35) - (14 * 21) = 560 - 294 = 266
Required average = (266/14) = 19 years.
Sum of the ages of 14 students
= (16 * 35) - (14 * 21) = 560 - 294 = 266
Required average = (266/14) = 19 years.