Question 1111009
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One person's debt is getting smaller by $5 a week; the other person's is getting larger by $15 a week.<br>
The difference between the amounts of the two debts is changing by $20 a week.<br>
Then, since the difference in the two debt amounts in the beginning was $200, the number of weeks it will take for the two debts to be equal is 200/20 = 10.