MBA Exam

There are two people P and Q at the the opposite ends A and B. They both started running toward each other. The speed of P is 50 km/hr. After meeting P and Q take 20 and 45 mins respectively to reach at the end. At what time from starting the will they meet for the 10th time??Plz explain your approach also....Dont know the OA

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MBA Other Question

FIVE NUMBERS ARE WRIITEN IN DESCENDING ORDER IN A ROW. THE AVERAGE OF ALL POSSIBLE QUADRUPLETS OF THESE NUMBERS ARE WRIITEN, IN DESCENDING ORDER IN SECOND ROW. THIS ORDER IS THEN REPEATED FOR SECOND ROW AND SO ON. THE DIFFERENCE OF FIRST AND LAST NUMBERS IN FIRST ROW IS 41 AND DIFFERENCE OF SECOND AND FOYRTH NUMBERS IN SECOND ROW IS 4.1. FIND APPROX DIFF. OF FIRST AND LAST NUMBERS IN SEVENTH ROW

1) 0.01
2) 0.002
3) 0.004
4) 0.001
5) NONE OF THESE
If are in arithmetic progression, then which of the following are in arithmetic progression.

1) a, b, c
2) a + b, a + c, c + b
3) 1/a, 1/b ,1/c
4) 1/a+b, 1/a+c, 1/c+b