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प्रश्न
8 men can do a piece of work in 9 days. In how many days will 6 men do it?
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उत्तर
\[\text{ It is given that 8 men can complete a job in 9 days } . \]
\[ \therefore \text{ Time taken by 1 man to complete the same job } = \left( 8 \times 9 \right) = 72 \text{ days } \]
\[ \therefore \text{ Time taken by 6 men to complete the same job } = \frac{72}{6} = 12 \text{ days } \]
संबंधित प्रश्न
Complite the following table given that x varies directly as y .
| x | 6 | 8 | 10 | ... | 20 |
| y | 15 | 20 | ... | 40 | ... |
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| Mixture A | Mixture B |
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Match each of the entries in Column I with the appropriate entry in Column II
| 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 |
| 3. Mathematical representation of direct variation of quantities m and n |
C. xy = Constant |
| 4. When x = 5, y = 2.5 and when y = 5, x = 10 | D. `p oo 1/q` |
| 5. When x = 10, y = 5 and when x = 20, y = 2.5 | E. y will decrease in proportion |
| 6. x and y vary directly with each other | F. x and y are directly proportional |
| 7. If x and y vary inversely then on decreasing x | G. `m oo n` |
| 8. If x and y vary directly then on decreasing x | H. x and y vary inversely |
| I. `p oo q` | |
| J. `m oo 1/n` |
