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If x and y vary directly . If x =5 and y...

If x and y vary directly . If x =5 and y = 15 . Find `y_(1)` when `x_(1)` is 3.

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The correct Answer is:
`y_(1)=9`
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NAND LAL PUBLICATION-DIRECT AND INVERSE PROPORTIONS-SAMPLE PAPER FOR PRACTICE ( Fill in the blanks )
  1. Speed of moving objects varies inversely to the to cover a certain di...

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  2. Two quantities x and y are said to be in direct proportion if (x)/(y) ...

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  3. 25 men can repair the road in 10 days 50 men will take days to repair...

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  4. If x and y are inverse proportion then they can be written as .

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  5. The distance covered varies inversely to the consumption of petrol?

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  6. For a fixed time period and rate of interest simple interest is direct...

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  7. If x varies inversely with y when x=6 , y =8 then x =8 , y=

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  8. If one angle of a triangle is kept fixed then the measure of remaining...

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  9. If x and y vary inversely then if x = 45. Find y if constant of variat...

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  10. If x and y vary directly . If x =5 and y = 15 . Find y(1) when x(1) is...

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  11. If x and y vary directly with each other. Find the constant of variati...

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  12. 25 kg rice lasts for 28 days in a family for 10 members . If 4 guests...

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  13. What is variation ? Name two types of variations . What is the conditi...

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  14. Number of student and fees collected by the school .

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  15. Number of workers and number fo working hours .

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  16. Number of winners and the prize money are in direct or inverse propor...

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  17. Are the number of spokes and the angles formed between the pairs of co...

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