• In the maths theme;

    Two groups (A & B) have the same start point.
    They set off in the same direction.
    A is traveling at 15mph with a break of 5 minutes every hour.
    B is travelling at 20mph with out pauses.

    How much time must pass between A and B departures, to allow B to catch A after X?

    Caveats:
    1] Where X is equal to the exact distance of route yet to be committed to paper print pixels.
    2] Assuming that there are no unexpected stoppages for either A or B

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