There are three points P, Q and R on a straight line such that PQ : QR = 3 : 5. If n is the number of possible values of PQ : PR, then what is n equal to ?
A
1
B
2
C
3
D
4
Correct Answer: Option B
Explanation
1. **Analyze the Setup**: We have three points P, Q, and R on a straight line. We are given the ratio of lengths $PQ : QR = 3 : 5$. To keep it simple and intuit