Alex invested his savings in two parts. The simple interest earned on the first part at 15% per annum for 4 years is the same as the simple interest earned on the second part at 12% per annum for 3 years. Then, the percentage of his savings invested in the first part is
Explanation:
Let the amount invested in first and second parts is F and S respectively.
⇒ F×15×4100 = S×12×3100
⇒ FS = 35
⇒ % amount invested in first part = 33+5 × 100% = 37.5%
Hence, option (d).
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