Vishwanath
Saturday, February 16, 2013
20.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
Answer:
Option : A
Let investment in 12% stock be Rs. y.
Then, investment in 15% stock = Rs. (12000 - y).
∴ |
| 12
| x y + | 15 | x (12000 - y) |
| = 1360 |
120 | 125 |
⇒ |
| y
| + | 3 | x (12000 - y) |
| = 1360 |
10 | 25 |
⇒ 5y + 72000 - 6y = 1360 x 50
⇒ y = 4000.
Title : Stocks And Shares Q20
Description : 20.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...
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