Ravi invested Rs 913 partly in 4% stock at Rs 97 and partly in 5% stock at Rs 107. If his income from both is equal: find the amount invested in each stock.

Ravi invested Rs 913partly in 4% stock at Rs 97 and partly in 5% stock at Rs107. If his income from both is equal: find the amount invested in each stock.

A man invests some money partly in 9% stock at 96 and partly in 12% stock at 120. To obtain equal dividends from both,he must invest the money in the ratio (a) 3:4 (b) 3:5 (c) 4:5quad (d) 16:15

A man sells Rs5000,12% stock at 156 and invests the proceeds partly in 8% stock at 90 and 9% stock at 108. He thereby increases his income by Rs 70. How much of the proceeds were invested in each stock?

Sakshi invests a part of Rs 12,000 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 4000 (b) Rs 4500 (c) Rs 5500 (d) Rs 6000

A person invested part of Rs. 45,000 at 4% and the rest at 6%. If his annual income from both are equal, then what is the average rate of interest ?

An amount of Rs 10,000 is put into three investments at the rate of 10, 12 and 15% per annum. The combined income is Rs 1310 and the combined income of first and second investment is Rs 190 short of the income from the third. Find the investment in each using matrix method.