Discussion

Question:

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.

⇒ $\frac{F \times 15 \times 4}{100}$ = $\frac{S \times 12 \times 3}{100}$

⇒ $\frac{F}{S}$ = $\frac{3}{5}$

⇒ % amount invested in first part = $\frac{3}{3 + 5}$ × 100% = 37.5%

Hence, option (d).

» Your doubt will be displayed only after approval.

Doubts

Feedback