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प्रश्न
In which of the following table x and y vary inversely:
| x | 5 | 20 | 10 | 4 |
| y | 20 | 5 | 10 | 25 |
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उत्तर
\[ \text{ In all cases, the product xy is constant for any two pairs of values for x and y } . \]
\[\text{ Here, xy = 100 for all cases } \]
\[\text{ Thus, in this case, x and y vary inversely .} \]
संबंधित प्रश्न
In which of the following table x and y vary inversely:
| x | 4 | 3 | 6 | 1 |
| y | 9 | 12 | 8 | 36 |
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
If 36 men can do a piece of work in 25 days, in how many days will 15 men do it?
1200 men can finish a stock of food in 35 days. How many more men should join them so that the same stock may last for 25 days?
In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?
If x and y vary inversely as other and x = 3 when y = 8, find y when x = 4 .
A toy company requires 36 machines to produce car toys in 54 days. How many machines would be required to produce the same number of car toys in 81 days?
When the speed is kept fixed, time and distance vary inversely with each other.
If a and b vary inversely to other, then find the values of p, q, r ; x, y, z and l, m, n.
| a | 2 | y | 6 | 10 |
| b | x | 12.5 | 15 | z |
A packet of sweets was distributed among 10 children and each of them received 4 sweets. If it is distributed among 8 children, how many sweets will each child get?
