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Question
A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 12 minutes?
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Solution
| Distance (in km) | 50 | x |
| Time (in minute) | 60 | 12 |
\[\text{ Therefore, it is a direct variation } . \]
\[50: x = 60: 12\]
\[ \Rightarrow \frac{50}{x} = \frac{60}{12}\]
\[ \text{ Applying cross muliplication, we get: } \]
\[x = \frac{50 \times 12}{60}\]
\[ = 10\]
\[\text{ Thus, the required distance will be 10 km } .\]
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