Civil Service Exam Reviewer · Word Problems · hard
₱240,000 was invested, part at 6% and the rest at 10% simple annual interest. The total interest after one year was ₱15,600. How much was invested at 6%?
- ₱210,000
- ₱30,000
- ₱120,000
- ₱156,000
Answer
A. ₱210,000
Solution
0.06x + 0.1(240,000 − x) = 15,600 → 0.04x = 8,400 → x = ₱210,000.
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