Masood invests a part of Rs. 12000 in 12% stock at Rs. 120 and the remainder in 15% stock at Rs. 125. If his total dividend per annum is Rs. 1360, how much does he invest in 12% stock at Rs. 120?

A. Rs. 4500

B. Rs. 6000

C. Rs. 5500

D. Rs 4000

✅ The correct answer is option D. Rs 4000.
Let investment in 12% stock is Rs. x.

investment in 15% stock Rs. (12000 – x).

98. Masood invests a part of Rs. 12000 in 12% stock at Rs. 120 and the remainder in 15% stock at Rs. 125. If his total dividend per annum is Rs. 1360, how much does he invest in 12% stock at Rs. 120?