question_answer

A person P is at X and another person Q is at V. The distance between X and Y is 100 km. The speed of P is 20 km/h, while the speed of Q is 60 km/h. If P and Q continue to move between X and Y in the given manner and if they meet for the fourth time at a place M somewhere between X and V, then the distance between X and M is A race track is in the form of a ring whose inner and outer circumference are 352 metres and 396 metres respectively.

A)  10km              

B)  90km        

C)  75km              

D)  None of these