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प्रश्न
When two quantities x and y are in ______ proportion or vary ______ they are written as `x oo 1/y`.
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उत्तर
When two quantities x and y are in inverse proportion or vary inversely they are written as `x oo 1/y`.
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संबंधित प्रश्न
Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him by completing the following table:
| Number of spokes | 4 | 6 | 8 | 10 | 12 |
| Angle between a pair of consecutive spokes |
90° | 60° | ... | ... | ... |
- Are the number of spokes and the angles formed between the pairs of consecutive spokes in inverse proportion?
- Calculate the angle between a pair of consecutive spokes on a wheel with 15 spokes.
- How many spokes would be needed if the angle between a pair of consecutive spokes is 40°?
A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his cattle?
In which of the following table x and y vary inversely:
| x | 4 | 3 | 12 | 1 |
| y | 6 | 8 | 2 | 24 |
A car can finish a certain journey in 10 hours at the speed of 48 km/hr. By how much should its speed be increased so that it may take only 8 hours to cover the same distance?
12 cows can graze a field for 10 days. 20 cows can graze the same field for _______ days
Six men can complete a work in 12 days. Two days later, 6 more men joined them. How many days will they take to complete the remaining work?
If one angle of a triangle is kept fixed then the measure of the remaining two angles vary inversely with each other.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Increase in cost and number of shirts that can be purchased if the budget remains the same.
If x varies inversely as y and x = 20 when y = 600, find y when x = 400.
The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y decrease?
