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There are 42 boys and 18 girls in a clas...

There are 42 boys and 18 girls in a class. What is the percentage of boys in the class ?

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`70%`
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The average marks of boys in a class is 52 and that of girls is 42. The average marks of boys and girls combined is 50. The percentage of boys in the class is (1) 40 (2) 20 (3) 80 (4) 60

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ICSE-PERCENTAGE -EXERCISE 9B
  1. If 0.6% of a number is 15, find the number.

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  2. If 3/(4)% of a number is 9, find the number.

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  3. There are 42 boys and 18 girls in a class. What is the percentage of b...

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  4. A team won 6 hockey matches and lost 9 matches. What per cent of the m...

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  5. A batsman scored 75 runs which included 3 boundries and 8 sixes. What ...

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  6. 12% of a sum of money is Rs 42. What is 20% of the same sum?

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  7. 6(1)/(4) of a weight is 0.25 kg. What is 45% of this weight?

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  8. In a class of 60 pupils, 15% remained absent on a rainy day. How many ...

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  9. The monthly income of Mr. Amit Goel is Rs 30400. He saves 12.5% of his...

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  10. An ore contain 15% iron. How much ore will be required to get 18 kg o...

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  11. A property dealer charges a commision of 2% on the first Rs 25000 and ...

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  12. In an examination, the maximum marks are 850. Rohit gets 34% marks and...

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  13. A student secures 90%, 60% and 54% marks in three test papers with max...

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  14. In an examination, 5% of the applicants were found ineligible and 85% ...

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  15. Gun - powder contains 75% nitre, 10% sulphur and the rest of it is cha...

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  16. An alloy consists of 13 parts of copper, 7 parts of zinc and 5 parts o...

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  17. Two candidates A and B contested an election. The total votes polled w...

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  18. At an election between two candidates, 68 votes were declared invalid...

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  19. The salary of Mrs. Sarita is Rs 32000 per month. 10% of it is deducted...

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  20. The salary of Mrs. Sarita is Rs 32000 per month. 10% of it is deducted...

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