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प्रश्न
Ten men take 4 days to complete the task of tarring a road. How many days would 8 men take?
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उत्तर
| Number of men | Number of days |
| 10 | 4 |
| 8 | x |
The more men, the fewer the number of days required to finish the work.
So, the number of men and the number of days required to complete the work are inversely proportional to each other.
`10/8 = "x"/4`
`=> "x" = (10 xx 4)/8`
⇒ x = 5
Thus, when 8 men are involved, 5 days will be required.
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| Column I | Column II |
| 1. x and y vary inversely to each other | A. `x/y` = Constant |
| 2. Mathematical representation of inverse variation of quantities p and q |
B. y will increase in proportion |
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