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Length of a side of an equilateral trian...

Length of a side of an equilateral triangle and its perimeter vary inversely with each other.

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NCERT EXEMPLAR-DIRECT AND INVERSE PROPORTIONS -EXERCISES
  1. When the distance is kept fixed, speed and time vary directly with eac...

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  2. Length of a side of a square and its area vary directly with each othe...

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  3. Length of a side of an equilateral triangle and its perimeter vary inv...

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  4. If d varies directly as t^2 then we can write dt^2=k where k is some c...

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  5. If a tree 24 m high casts a shadow of 15 m, then the height of a pole ...

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  6. If x and y are in direct proportion, then (x – 1) and (y – 1) are also...

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  7. If x and y are in inverse proportion, then (x + 1) and (y + 1) are als...

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  8. If p and q are in inverse variation then (p + 2) and (q – 2) are also ...

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  9. If one angle of a triangle is kept fixed then the measure of the remai...

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  10. Direct variations if two quantities a and b vary with each other in su...

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  11. Inverse variation if two quantities x and y vary with each other in su...

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  12. If x varies inversely as y and when x = 6, y = 8, then for x = 8 the v...

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  13. The number of workers and the time to complete a job is a case of dire...

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  14. For fixed time period and rate of interest, the simple interest is dir...

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  15. Which of the following are in inverse proportion? (i) The number...

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  16. In the following questions, which of them vary directly and which vary...

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  17. In the following questions, which of them vary directly and which vary...

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  18. In the following questions, which of them vary directly and which vary...

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  19. If x varies inversely as y and x = 20 when y = 600, find y when x = 40...

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  20. The variable x varies directly as y and x = 80 when y is 160. What is ...

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