Subject
Quantitative Aptitude
Topic
Average
Average age of 36 students of a group is 14 years. When teacher included, the average increases by 1 year, what is the age of teacher?
Average age of 36 students of a group is 14 years. When teacher included, the average increases by 1 year, what is the age of teacher?
ক)
31 yearsখ)
36 yearগ)
51 yearঘ)
60 yearsঙ)
None of theseExplanation
⇒ Average of 36 students = 14 ⇒ 37 member = 14 + 1 = 15 ⇒ Age of teacher = {(37 × 15 – 36 × 14)} = 555 – 504 = 51 yearsRelated questions
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