Multiple Choice Question

The average age of 26 students of a class is 26 years. If the age of the teacher is also included, the average age of the whole group becomes 27 years. The age (in years) of the teacher is:

A

54
B

50
C

57
D

53

Explanation:

Students total = 26×26 = 676 ⇒ With teacher = 27×27 = 729 ⇒ Teacher age = 53.

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This question belongs to the set "RRB Group D 2025 Question Paper – 27 November Shift 1 | Set 2 (Q26–Q50) Mathematics". Click below to read detailed notes and attempt the full quiz.

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