Q. From point P, at 6 : 30 pm, a train starts moving towards Q with the speed of 40 km/hr. Another train starts moving from point Q at 7:30 p.m. towards point P at the speed of 60 km/hr. Both of them meet at 11:30 p.m. at point R. What is the ratio of PR and QR?

A) 5 : 6

B) 3 : 4

C) 5 : 4

D) 4 : 5

✔ Correct Answer: 5 : 6

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