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प्रश्न
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
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उत्तर
\[ \text{ If x and y vary inversely, the product xy should be constant } . \]
\[\text{ Here, product is different for all cases } . \]
\[\text{ Thus, in this case, x and y do not vary inversely .} \]
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संबंधित प्रश्न
In a Television game show, the prize money of Rs 1,00,000 is to be divided equally amongst the winners. Complete the following table and find whether the prize money given to an individual winner is directly or inversely proportional to the number of winners?
| Number of winners | 1 | 2 | 4 | 5 | 8 | 10 | 20 |
| Prize for each winner (in Rs) | 1,00,000 | 50,000 | ... | ... | ... | ... | ... |
It x and y vary inversely, fill in the following blank:
| x | 16 | 32 | 8 | 128 |
| y | 4 | ... | ... | 0.25 |
Which of the following quantities vary inversely as other?
The length x of a journey by bus and price y of the ticket.
18 men can reap a field in 35 days. For reaping the same field in 15 days, how many men are required?
10 farmers can plough a field in 21 days. Find the number of days reduced if 14 farmers ploughed the same field?
Which quantities in the previous question vary inversely with each other?
If x varies inversely as y, then
| x | – | 60 |
| y | 2 | 10 |
If x varies inversely as y and x = 20 when y = 600, find y when x = 400.
If x varies inversely as y and y = 60 when x = 1.5. Find x. when y = 4.5.
If a and b vary inversely to other, then find the values of p, q, r ; x, y, z and l, m, n.
| a | 6 | 8 | q | 25 |
| b | 18 | p | 39 | r |
