Question

Sakshi invests a part of Rs. 12,000 in $12\%$ stock at Rs. 120 and the remainder in $15\%$ stock at Rs. 125. If her total dividend per annum is Rs. 1360, how much does she invest in $12\%$ stock at Rs. 120?

• A. 5000
• B. 5500
• C. 4000
• D. 4500

Answer 1

The correct option is C

4000

Let investment in $12\%$ stock be Rs $x$

Then, investment in $15\%$ stock = Rs. $12000-x$.

∴ $\frac{12}{120}x+\frac{15}{125}(12000–x)=1360$

$\frac{x}{10}+\frac{3}{25}(12000–x)=1360$

$5x+72000–6x=1360\times 50$

$x=4000$