The average age of 35 students in a class is 16 years Out of these students the average age of 21 st...........

Quantitative Aptitude ( CCS) Average

The average age of 35 students in a class is 16 years. Out of these students the average age of 21 students is 14 years. The average age of remaining students is

10 yrs

20 yrs

19 yrs

29 yrs

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Explanation:

Average age of 35 students = 16 years
Total age of 35 students = 35 × 16 = 560 years
Average age of 21 students = 14 years
Total age of 21 students = 21 × 14 = 294 years
Remaining number of students = 35 - 21 = 14
Total age of the remaining 14 students = 560 - 294 = 266 years
Average age of the remaining 14 students = 266 / 14 = 19 years.

Hence, option 3 is the correct answer.