7.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 : D
For an income of Re. 1 in 9% stock at 96, investments
|
= Rs.
|
|
96
|
|
= Rs.
|
|
32
|
|
9
|
3
|
For an income of Re.1 in 12% stock at 120, investments
|
= Rs.
|
|
120
|
|
= Rs. 10
|
12
|
Ratio of investments
|
=
|
32
|
: 10 = 32 : 30 = 16 : 25
|
3
|
