Civil Service Exam Reviewer · Word Problems · medium
A piggy bank has 74 coins consisting of ₱5 and ₱10 coins, worth ₱570 in all. How many ₱10 coins are there?
- 34
- 57
- 38
- 40
Answer
D. 40
Solution
Let x = ₱10 coins: 10x + 5(74 − x) = 570 → 5x = 200 → x = 40.
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