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Two monkeys, monkey A and monkey B pluck apples from tree A and tree B respectively.

If monkey A plucks apples at a rate of 28 apples per minute and monkey B plucks apples at a rate of 7 apples per minute, there would still be 89 apples left on tree A by the time all the apples on tree B are plucked.

If monkey B plucks apples at a rate of 28 apples a minute and monkey A plucks apples at a rate of 7 apples a minute, there would still be 404 apples left on tree A by the time all the apples on tree B are plucked.