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| Math Central | Quandaries & Queries |
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Question from Zena, a student: There are 227 coins altogether in 3 parking meters. |
Hi Zena,
The second statement says that if you knew how many coins were in the first meter you could easily calculate the number in the second meter. The third statement then says that if you knew how many coins were in the second meter you could easily calculate the number in the third meter. Hence the key to this problem is the number of coins there are in the first meter.
- Let C be the number of coins in the first parking meter.
- How many coins are there in the second parking meter?
- How many coins are in the third parking meter?
- How many coins are there in total?
- This number must be 227.
- Solve for C?
Penny
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