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100 persons had food provision for 24 da...

100 persons had food provision for 24 days. If 20 persons left the place, the provision will last for

A

30 days

B

`96/5` days

C

120 days

D

120 days

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NCERT EXEMPLAR-DIRECT AND INVERSE PROPORTIONS -EXERCISES
  1. Both x and y are in direct proportion, then 1/x and 1/y are

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  2. Meenakshee cycles to her school at an average speed of 12 km/h and tak...

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  3. 100 persons had food provision for 24 days. If 20 persons left the pla...

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  4. If two quantities x and y vary directly with each other, then

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  5. If two quantities p and q vary inversely with each other, then

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  6. If the distance travelled by a rickshaw in one hour is 10 km, then the...

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  7. Both x and y vary directly with each other and when x is 10, y is 14, ...

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  8. If x = 5y, then x and y vary with each other

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  9. If xy = 10, then x and y vary with each other.

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  10. When two quantities x and y are in proportion or vary they are writte...

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  11. When two quantities x and y are in proportion or vary they are writte...

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  12. Both x and y are said to vary with each other if for some positive nu...

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  13. x and y are said to vary directly with each other if for some positive...

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  14. Fill in the blanks in each of the following so as to make the state...

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  15. Fill in the blanks in each of the following so as to make the state...

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  16. If 12 pumps can empty a reservoir in 20 hours, then time required by 4...

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  17. If x varies inversely as y, then

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  18. When the speed remains constant, the distance travelled is proportiona...

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  19. On increasing a, b increases in such a manner that a/b remains and pos...

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  20. If on increasing a, b decreases in such a manner that remains constan...

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