Question

18. A and B start a business with initial
investments in the ratio 12 : 7 and their
annual profits were in the ratio 4 : 3. If A
invested the money for 7 months, then B
invested his money for
(a) 8 months (b) 9 months
(c) 10 months
(d) 5 months
​

Answer 1

investment=12:7
profit ratio=4:3
i1/i2=p1/t1/p2/t2=
12/7=4/7/3/x=9months