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Yesterday, 23:11

On a road trip, Sara's brother drove 47.5% of the trip, and Sara drove 80% of the remainder. If Sara drove for 4 hours and 12 minutes, how long was the road trip?

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  1. Yesterday, 23:27
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    80 percent of 52.5 percent of the trip is 42 percent

    therefore, 4 hours and 12 min (or 252 min) is 42 percent of the trip

    so

    252/.42 = x/1

    x = 600 min

    the whole trip was 10 hours
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