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### Discussion :: Stocks and Shares

1. Rs. 9800 are invested partly in 9% stock at 75 and 10% stock at 80 to have equal amount of incomes. The investment in 9% stock is:

2.  A. Rs. 4800 B. Rs. 5000 C. Rs. 5400 D. Rs. 5600

Explanation :

Let the investment in 9% stock be Rs. x.

Then, investment in 10% stock = Rs. (9800 - x).

$$\frac { 9 } {75 }$$XX=$$\frac { 1 0} {80 } *$$Rs. (9800 - x).

$$\frac { 3X} { 25 }$$=$$\frac { 9800 -X} { 8 }$$

24x = 9800 x 25 - 25x

49x = 9800 x 25

x = 5000.

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