The ratio of investments of two partners P and Q is 7:5 and the ratio of their profits is 7:11. If P invested the money for 5 months, find for how much time did Q invest the money?
Choose the correct choice from the following choices:  A) 19  B) 17  C) 13  D) 11  E) 12
7*5: 5*x = 7:11   x = 11   Answer: 11
<result>D</result>
The ratio of investments of two partners P and Q is 7:5 and the ratio of their profits is 7:11. If P invested the money for 5 months, find for how much time did Q invest the money?