Question : A bus covered a distance of 162 km. If the speed of this bus is 15 m/s, then what will be the time taken?
Option 1: 4 hours
Option 2: 2 hours
Option 3: 3 hours
Option 4: 5 hours
Correct Answer: 3 hours
Solution :
Given: A bus covered a distance of 162 km.
The speed of this bus is 15 m/s.
Convert m/s into km/hr by multiplying $\frac{18}{5}$
$15 \times \frac{18}{5}=54$ km/hr
We know the formula, $\text{Time}=\frac{\text{Distance}}{\text{Speed}}$
The time taken by the bus $=\frac{162}{54}=3$ hours.
Hence, the correct answer is 3 hours.
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