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21 September, 10:12

Variation

It takes 5 hours for a messenger to reach its destination at a speed of 42 mph. If you want to make the journey in 3 and a half hours, at what speed should you travel?

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  1. 21 September, 10:21
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    We would need to travel at 60 mph.

    Step-by-step explanation:

    If it takes 5 hours for a messenger to reach its destination at a speed of 42 mph, then the total amount of miles is 42x5 = 210 miles.

    Now we know that we need to drive 210 miles in 3.5 hours.

    Dividing 210/3.5, this gives us a total of 60.

    Therefore, we would need to travel at a speed of 60 mph to reach our destination in 3.5 hours.
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