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The average of the test scores of a clas...

The average of the test scores of a class of 'm' students is 70 and that of ’n' students is 91. When the scores of both the classes are combined, the average is 80. What is n/m?
m विद्यार्थियों की कक्षा के प्राप्तांकों का औसत 70 है तथा n विद्यार्थियों का 91 है। जब दोनों कक्षाओं के अंको को जोड़ दिया जाए तो ओसत 80 है। n/m का मान ज्ञात करें?

A

`10//13`

B

`10//11`

C

`11//10`

D

`13//10`

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CHAMPION PUBLICATION-2012 TIER-II PAPER(22)-EXERCISE
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  3. The average of the test scores of a class of 'm' students is 70 and th...

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  4. The average salary per head of all workers of an institution isर 60. T...

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

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  6. A man spends an average of र1694. 70 per month for the first 7 month a...

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  7. A and B undertake to do a piece of work for ₹ 2,200. A alone can do it...

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  8. By selling an article at 80% of its marked price, a trader makes a los...

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  9. By selling an umbrella for ₹ 30,a shopkeeper gains 20%. During a clea...

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  13. From each of two given numbers, half the smaller number is subtracted....

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  14. Men, women and children are employed to do a work in the proportion of...

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  15. A sells an article to B making a profit of (1)/(5) fot his outlay. B ...

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  16. A man had a certain amount with him. He spent 20% of that to buy an ar...

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