"We cannot solve our problems with the same thinking we used when we created them."
- Albert Einstein
9.
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 : 5
[D].
16 : 15
Answer: Option B
Explanation:
For an income of Re. 1 in 9% stock at 96, investment = Rs.
96
= Rs.
32
9
3
For an income Re. 1 in 12% stock at 120, investment = Rs.
Ratio of investments =