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:
Select the correct option
A) 334  B) 500  C) 265  D) 197  E) 121
Let the investment in 9% stock be Rs. x.   Then, investment in 10% stock = Rs. (9800 - x).   9	x x =	10	x (9800 - x)   75	80   3x	=	9800 - x   25	8   24x = 9800 x 25 - 25x   49x = 9800 x 25   x = 500   Answer:500
<result>B</result>
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: