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The average age of 24 students is 15.5 y...

The average age of 24 students is 15.5 years. The age of the teacher is 24 years more than the average age of all the students and teacher. What is the age (in years) of the teacher?

A

40

B

41.4

C

42

D

40.5

Text Solution

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The correct Answer is:
D
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GAGAN PRATAP -AVERAGE-Multiple Choice Questions
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  2. The average of n observations is 40. If one observation of value 80 is...

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  3. The average age of 24 students is 15.5 years. The age of the teacher i...

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  4. Three numbers are such that if the average of any two of them is added...

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  5. The average of eleven numbers is 68. The average of the first four num...

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  6. The average of thirteen numbers is 80. The average of the first five n...

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  7. The average of 24 numbers is 56. The average of the first 10 numbers i...

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  8. The average marks of 30 boys is 88, and when the top scores were exclu...

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  9. A batsman scores 92 runs in his 15th innings, which increases his batt...

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  10. A batsman makes 100 runs in the 25th match of his career. His average ...

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  11. The average run of a batsman in his 23 matches is 62. He scores 122 in...

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  12. A cricket batsman had certain average of runs in his 91 innings. In th...

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  13. A cricketer had a certain average of runs for his 64 innings. In his 6...

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  14. A batsman scores certain runs in 72 innings. In next two innings he sc...

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  15. A batsman scores 556 run in 26th, 27th, 28th and 29th innings together...

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  16. The batting average for 40 innings of a cricket player is 50 runs. His...

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  17. A cricketer whose bowling average is 24.85, runs per wicket, takes 5 w...

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  18. The bowling average of a cricketer was 12.4. He improves his bowling a...

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  19. The average run rate of a cricket team during the first 20 overs is 4....

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  20. A and B have their annual average income Rs. 80,000. B and C have thei...

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