Civil Service Exam Reviewer · Word Problems · medium
A piggy bank has 23 coins consisting of ₱5 and ₱10 coins, worth ₱205 in all. How many ₱10 coins are there?
- 18
- 5
- 20.5
- 14
Answer
A. 18
Solution
Let x = ₱10 coins: 10x + 5(23 − x) = 205 → 5x = 90 → x = 18.
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