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The average marks obtained by 120 studen...

The average marks obtained by 120 students in an examination is 30. If the average marks of passed students is 40 and that of the failed students is 10, what is the 25% of the number of students who passed the examination?

A

30

B

20

C

40

D

15

Text Solution

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The correct Answer is:
B
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ARIHANT SSC-AVERAGE -EXERCISE HIGHER SKILL LEVEL QUESTION
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  3. The average marks obtained by 120 students in an examination is 30. If...

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  4. A cricketer played 80 innings and scored an average of 99 runs. His sc...

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  6. A class is divided into two sections A and B . Passing average of 20 s...

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  10. The average weight of 4 men A, B, C and D is 67 kg. Another man E joi...

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  11. 3yr ago, the average age of family of 5 members was 17yr . Even after ...

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  12. The average age of three boys is 15yr . If the ratio of their ages is ...

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  13. 5 yr ago, the average age of Rashmi and Surbhi was 20 yr. Now, the ave...

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  14. The average weight of 60 students in a class was calculated to be 40 k...

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  15. A person bought some oranges worth Rs36 from each of the five markets ...

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  16. Average of a,b and c is 11 ,average of c ,d and e is 17 , average of e...

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  17. The average age of 54 girls in a class was calculated as 14 yr. It was...

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  18. The average age of a man and his two twin sons born on the same day is...

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  19. The ratio of pens and pencils in a stationary shop is 3 : 2, respectiv...

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  20. If the average of the ages of Rakesh and Mohan is 15, average of the a...

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