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Rajani has 120 coins in her purse. Of th...

Rajani has 120 coins in her purse. Of these, 40 are Rs1 coins, 50 are Rs5 coins, and 30 are Rs10 coins. Find the percentage of coins of each denominations.

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The correct Answer is:
`33(1)/(3)%` , `41(2)/(3)%` , `25%`
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ICSE-PERCENTAGE, PROFIT AND LOSS-REVISION EXERCISE
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  2. Write as percentages. a.(3)/(20) b.(7)/(8) c.(4)/(25) d. (2)/(125) e...

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  3. Write the ratio as percentage: 2:3:5

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  4. Convert the following percentages into fractions. a. 17.5% b.65% c. ...

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  5. Convert the following percentages into decimals. a. 3.5% b. 22% c. 2...

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  6. Find a. 15% of 7500g b. 12% of Rs 240 c. 8% of 120 km

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  7. Find the value of a if: a. 1% of a=7 b. 100% of a=100 c. 12% of a=18...

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  8. What percentage of a. 40 m is 10 m ? b. 7 litres is 1.4 litres?

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  9. If Rs 60 is reduced by 20% , find the decreased amount.

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  10. The population of a town increases 10% annually. If the present popula...

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  11. Anita has obtained 450 marks in an examination. If she obtained 75% of...

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  12. A nursery has 5000 plants. 10% of these plants are roses and 35% are d...

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  13. An ally of tin and copper consists of 24 parts of tin and 136 parts of...

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  14. In an examination, 15% students failed and 425 students passed. Find t...

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  15. In a box of electric bulbs, 12% are defective. If 176 bulbs are good, ...

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  16. A box contains 140 sweets. These sweets are divided amongst Rahul, Pra...

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  17. An IPL cricket team won 7 matches this year as against 10 matches last...

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  18. What will be the cost price of an item if it is sold for Rs 187 after ...

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  19. Rohit's salary was increased by 10% to Rs 41,800. Find his salary befo...

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  20. A book was bought for Rs 560 and sold for Rs 630. Find the gain and ga...

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