A scooterist travels at 30 km/h along straight path for 20 min. What is distance?

1.5 km

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6 km

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10 km

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90 km

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Solution

The correct option is C 10 km
If the scooter is travelling at precisely $30 k m / h$ in a perfectly straight line.
We know $1$ hour= $60$ minutes
Therefore to calculate the distance traveled in the started fraction of the hour.
$∴ 20$ minutes is $= \frac{20}{60} = \frac{1}{3}$ of an hour or $3.3333$ %
$30 k m \times \frac{1}{3} = 10 k m$
Therefore $10 k m$ is the distance traveled in $20$ minutes of travelling at a speed of $30 k m / h$

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