Question
The average age of class of 24 students is 24 years. The average increased by 1 when the teacher's age is also included. What is the teacher's age?
Answer: Option D
- Avg x Number = Total
24 years x 24 nos = 576 years …..(1)
25 years x 25 nos = 625 years …..(2)
Teachers age = (2) - (1)
625 - 576 = 49 years.
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- Avg x Number = Total
24 years x 24 nos = 576 years …..(1)
25 years x 25 nos = 625 years …..(2)
Teachers age = (2) - (1)
625 - 576 = 49 years.
Was this answer helpful ?
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