A man invests some money partly in 10% stock at 90 and partly in 5% stock at 90.To obtain equal dividends from both,he must invest the money in the ratio : Pick one:
A) 1 : 2
B) 3 : 5
C) 4 : 5
D) 16 : 15
E) None
Solution   For an income of Rs. 1 in 10% stock at 90, investment = Rs. (90/10)= Rs. 9 .   For an income of Rs. 1 in 5% stock at 90, investment = Rs.(90/5) = Rs. 18.   ∴ Ratio of investments = 9 :18 =1:2   1 : 2nswer 1 : 2
<result>A</result>
A man invests some money partly in 10% stock at 90 and partly in 5% stock at 90.To obtain equal dividends from both,he must invest the money in the ratio :