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Both u and v vary directly with each other. When u is 10, v is 15, which of the following is not a possible pair of corresponding values of u and v?

A

2 and 3

B

8 and 12

C

15 and 20

D

25 and 37.5

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NCERT EXEMPLAR-DIRECT AND INVERSE PROPORTIONS -EXERCISES
  1. Both u and v vary directly with each other. When u is 10, v is 15, whi...

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  2. Both x and y vary inversely with each other. When x is 10, y is 6, whi...

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  3. Assuming land to be uniformly fertile, the area of land and the yield ...

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  4. The number of teeth and the age of a person vary

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  5. A truck needs 54 litres of diesel for covering a distance of 297 km. T...

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  6. By travelling at a speed of 48 kilometres per hour, a car can finish a...

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  7. In which of the following case, do the quantities vary directly with e...

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  8. Which quantities in the previous question vary inversely with each oth...

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  9. Which of the following vary inversely with each other?

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  10. Both x and y are in direct proportion, then 1/x and 1/y are

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

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  12. 100 persons had food provision for 24 days. If 20 persons left the pla...

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

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

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

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

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

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

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

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

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