Question 1203777: You plan to save $15 per week from your allowance to buy a snowboard for $400.How many months will it take? Answer by ikleyn(52890) (Show Source):
Divide 400 by 15 = 26.
You need 27 weeks, or 189 days. Counting in months, you need 7 months. ANSWER
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The post-solution note
Regarding this problem, it is important to understand, that "a month" is not an established unit of time.
Some months have 30 days; other have 31 days; February has 28 or 29 days.
Therefore, the given problem is NOT a Math problem: it operates with indefinite unit of time "a month".
So, in the best case, it is a puzzle task; but in any case, it is not a Math problem.
