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While tabulation of marks scored in an e...

While tabulation of marks scored in an examination by the students of a class, by mistake the marks scored by one student got recorded as 93 in place of 63, and thereby the average marks increased by 0.5. What was the number of students in the class?

A

20

B

60

C

30

D

15

Text Solution

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The correct Answer is:
B
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GAGAN PRATAP -AVERAGE-Multiple Choice Questions
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  8. The average of thirteen numbers is 80. The average of the first five n...

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

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

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

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

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

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

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

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

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