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  9. Q139

HPSC HCS 2021 · Question 139 of 177

The average age of 14 students is 14 years. if the age of the teacher is added the average increase by 1. What is the age of the teacher?

Averages

  1. A32 years
  2. B30 years
  3. C28 years
  4. D29 yearsCorrect

Answer: D. 29 years

Explanation

Total of 14 students = 196; with teacher the total for 15 at average 15 is 225, so the teacher is 29.

Source: HPSC HCS (Ex.Br.) Prelims Paper-II (CSAT) held 12-Sep-2021 (prepp.in compilation); answers per official HPSC answer key

← Q138View full paper (177 questions)Q140 →

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