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agasfer [191]
3 years ago
9

A car drives 494 km in 4 hours 45 minutes what is its average speed in kilometers per hour?

Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0

The average speed is 104 kilometer per hour

<em><u>Solution:</u></em>

Given that,

A car drives 494 km in 4 hours 45 minutes

To find: Average speed in kilometers per hour

<em><u>The average speed is given by formula:</u></em>

Average\ speed = \frac{distance}{time}

From given,

Distance = 494 km

Time = 4 hours 45 minutes

We know that,

1 hour = 60 minutes

Therefore,

45\ minutes = \frac{45}{60}\ hour\\\\45\ minutes = 0.75\ hour

Thus,

time = 4 hours 45 minutes = 4 hour + 0.75 hour = 4.75 hour

<em><u>Thus average speed is:</u></em>

Average\ speed = \frac{494}{4.75}\\\\Average\ speed = 104

Thus average speed is 104 kilometer per hour

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