The ratio of investments of two partners P and Q is 7:5 and the ratio of their profits is 7:10. If P invested the money for 8 months, find for how much time did Q invest the money?  Choose the correct choice from the following choices.
A) 11 B) 10 C) 18 D) 16 E) 12
7*5: 8*x = 7:10   x = 16   Answer:16
<result>D</result>
The ratio of investments of two partners P and Q is 7:5 and the ratio of their profits is 7:10. If P invested the money for 8 months, find for how much time did Q invest the money?