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20 August, 15:51

how long can you afford to stop for lunch if you can drive a steady 90 km/h on the highway and must take a 225 km trip in 210 min?

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  1. 20 August, 16:09
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    1 hour

    Explanation:

    The trip is 225 km long, and your speed is 90 km/h. The time it takes to complete the trip without stopping is:

    t = (225 km) / (90 km/h)

    t = 2.5 hours

    t = 150 minutes

    You must complete the trip is 210 minutes, so you can afford to stop for 60 minutes, or 1 hour.
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