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प्रश्न
Which of the following are in inverse proportion?
Area of cultivated land and the crop harvested
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उत्तर
The amount of crop harvested will rise or fall in proportion to the extent of cultivated land.
∴ The sentence that follows is directly proportional.
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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 | ... | ... | ... | ... | ... |
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 batch of bottles was packed in 25 boxes with 12 bottles in each box. If the same batch is packed using 20 bottles in each box, how many boxes would be filled?
In which of the following table x and y vary inversely:
| x | 4 | 3 | 12 | 1 |
| y | 6 | 8 | 2 | 24 |
If x and y vary inversely as other and x = 3 when y = 8, find y when x = 4 .
A farmer has enough food for 144 ducks for 28 days. If he sells 32 ducks how long will the food last?
If p and q are in inverse variation then (p + 2) and (q – 2) are also in inverse proportion.
If x varies inversely as y and x = 20 when y = 600, find y when x = 400.
A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the work?
The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y decrease?
