A man invested Rs. 1552 in a stock at 97 to obtain an income of Rs. 128. The dividend from the stock is

A. 8%
B. 9.7%
C. 7.5%
D. None of these
Answer: A

Explanation:  

By investing Rs. 1552, income = Rs. 128.
By investing Rs. 97, income = Rs. (128/1552) * 97= Rs.
Dividend = 8%.