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From Sim’s house to the lake is 30 kilometers. If he completed the round trip on his bike in 2 hours and 30 minutes, what was his average speed in kilometers per hour?

Respuesta :

The average speed of Sim is 24 km/hr

Solution:

Given that,

Distance = 30 km

Time = 2 hours 30 minutes

We know that,

[tex]1\ minute = \frac{1}{60}\ hour\\\\Therefore\\\\30\ minute = \frac{30}{60} = 0.5\ hour[/tex]

Thus,

Time = 2 hour + 0.5 hour = 2.5 hour

The average speed is given as:

[tex]Average\ speed = \frac{ total\ distance}{total\ time\ taken }[/tex]

Therefore,

[tex]Average\ speed = \frac{60}{2.5} = 24[/tex]

Thus average speed is 24 km/hr

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