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The ratio of copper and zinc in an alloy...

The ratio of copper and zinc in an alloy is `9 : 5` If the weight of copper in the alloy is 48.6 grams. Find the weight of zinc in the alloy.

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The correct Answer is:
27 g
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RS AGGARWAL-RATION AND PROPORTION -EXERCISE 8A
  1. If A : B = 5 : 6 and B : C = 4 : 7 find A : B : C

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  2. Divide Rs 360 between kunal and mohit in the ratio 7 : 8

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  3. Divide Rs 880 between Rajan and kamal in the ratio (1)/(5) : (1)/(6)

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  4. Divide Rs 5600 between A, B and C in the ratio 1 : 3 : 4

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  5. What number must be added to each term of the ratio 9 : 16 to make the...

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  6. What number must be subtracted from each term of the ratio 17 : 33 so ...

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  7. Two numbers are in the ratio 7 : 11 If 7 is added to each of the numbe...

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  8. Two numbers are in the ratio 5 : 9. On subtracting 3 from each , the r...

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  9. Two numbers are n the ratio 3 : 4. If their LCM is 180, Find the numbe...

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  10. The ages of A and B are in the ratio 8 : 3 Six years hence their ages ...

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  11. The ratio of copper and zinc in an alloy is 9 : 5 If the weight of cop...

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  12. The ratio of boys and girls in a scholl is 8 : 3. If the toltal number...

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  13. The ratio of monthly income to the savings of a faimly is 11 : 2. If t...

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  14. A bag contains Rs 750 in the form of rupees , 50 P and 25 P coins in t...

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  15. If (4x + 5): (3x + 11) = 13 : 17, find the value of x.

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  16. If x : y = 3 : 4 find (3x + 4y) : (5x + 6y).

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  17. If x : y = 6 : 11 find (8 x - 3y) : (3x + 2y)

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  18. Two numbers are in the ratio 5 : 7 If the sum of the numbers is 720, f...

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  19. Which ratio is greater ? (i) (5 : 6) or (7: 9) (ii) (2 : 3) or (4 : ...

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  20. Arrange the following ratios in acending order: (i) ( 5 : 6), (8 : 9...

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