Multiple Choice Questions

A sum of Rs 12 800 is invested partly at 15 per annum and the remaining at 12 per annum simple inter...........

Quantitative Aptitude (CPO) Simple Interest

A sum of Rs 12,800 is invested partly at 15% per annum and the remaining at 12% per annum simple interest. If the total interest at the

end of 3 years is Rs 5,085. then how much money was invested at 15% per annum?

This questions was previously asked in

SSC CPO 12th-March-2019-Shift-2

Rs 5,300

Rs 7,500

Rs 5,800

Rs 5,200

- Let's denote the amount invested at 15% as $x$ . The remaining amount, at 12%, is $12, 800 - x$ .

- The interest from the first part is $\frac{15}{100} \times x \times 3$ .

- The interest from the second part is $\frac{12}{100} \times (12, 800 - x) \times 3$ .

- The total interest from both investments is Rs 5,085.

- We can set up the equation:

\frac{15}{100} \times x \times 3 + \frac{12}{100} \times (12,800 - x) \times 3 = 5,085

- Simplifying this, we solve for $x = R s 5, 800$ .

- Correct Answer: Option 3: Rs 5,800

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