Solution
In Case I, Pam has 128 pennies in the collection at the end of
the day on Saturday.
In Case II, Pam has 254 pennies in the collection at the end of
the day on Saturday.
Notice that in Case I, Pam put in one penny herself. In Case II,
she put in seven pennies herself. But, Pam ends the week with 126
(254 - 128) more pennies in Case II than in Case I.
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