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प्रश्न
Two persons could fit new windows in house in 3 days.
How many persons would be needed to fit the windows in one day?
उत्तर
Let the number of persons required to fit all the windows in one day be y. The following table is formed.
| Number of persons | 2 | y |
| Number of days | 3 | 1 |
The lesser the number of days, the more will be the number of persons required to fit all the windows. Hence, this is a case of inverse proportion. Therefore,
2 × 3 = y × 1
y = 6
Hence, 6 persons are required to fit all the windows in one day.
संबंधित प्रश्न
Which of the following are in inverse proportion?
Area of cultivated land and the crop harvested
Which of the following are in inverse proportion?
The population of a country and the area of land per person.
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
It x and y vary inversely, fill in the following blank:
| x | 9 | ... | 81 | 243 |
| y | 27 | 9 | ... | 1 |
A person has money to buy 25 cycles worth Rs 500 each. How many cycles he will be able to buy if each cycle is costing Rs 125 more?
Five workers take 12 days to weed a field. How many days would 6 workers take? How many would 15 take?
When two quantities x and y are in ______ proportion or vary ______ they are written as `x oo 1/y`.
If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______ hours.
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.
