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:
A. Rs. 4800
B. Rs. 5000
C. Rs. 5400
D. Rs. 5600
Answer: Option B
Solution(By Examveda Team)
$$\eqalign{ & {\text{Let}}\,{\text{the}}\,{\text{ivestment}}\,{\text{in}}\,9\% \,{\text{stock}}\,{\text{be}}\,Rs.\,x \cr & {\text{Then,}}\,{\text{investment}}\,{\text{in}}\,10\% \,{\text{stock}} \cr & = Rs.\,\left( {9800 - x} \right) \cr & \frac{9}{{75}} \times \,x\, = \frac{{10}}{{80}}\, \times \,\left( {9800 - x} \right) \cr & \Rightarrow \frac{{3x}}{{25}} = \frac{{9800 - x}}{8} \cr & \Rightarrow 24x = 9800 \times 25 - 25x \cr & \Rightarrow 49x = 9800 \times 25 \cr & \Rightarrow x = 5000 \cr} $$Related Questions on Stocks and Shares
In order to obtain an income of Rs. 650 from 10% stock at Rs. 96, one must make an investment of:
A. Rs. 3100
B. Rs. 6240
C. Rs. 6500
D. Rs. 9600
A. $$12\frac{1}{2}$$ %
B. $$13\frac{1}{2}$$ %
C. 15%
D. $$16\frac{2}{3}$$ %
Which is better investment: 11% stock at 143 or $$9\frac{3}{4}$$% stock at 117?
A. 11% stock at 143
B. $$9\frac{3}{4}$$% stock at 117
C. Both are equally good
D. Cannot be compared, as the total amount of investment is not given.
A. Rs. 12
B. Rs. 15
C. Rs. 18
D. Rs. 21
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