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It requires 5 hours and 51 minutes.

The distance 351 divided by the speed 60 would give 5.85 hours. But using minutes instead, you have 351 x 60 minutes per hour divided by 60 miles per hour, giving you a time of 351 miles divided by 60/60 miles per minute = 351 minutes or 5 hours 51 minutes.

*A shortcut for this particular speed is that 60 mph = 1 miles per minute,

so it again takes 351 minutes.

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15y ago

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