MBA Exam HR Interview Interview

P and Q are two points 100 km apart. A starts
running from P towards Q at 10 km/hr. B starts running from Q at exactly the
same time and in the same direction as that of A at 20 km/hr. After an hour, B
turns back and changes his speed to 10 km/hr. After another hour, B again turns
back and changes his speed to 20 km/hr. He keeps on changing his speed and
direction in this manner till the time he meets A. After how much time will A
and B meet for the first time?No OA

1) 18
2) 19
3) 20
4) None

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MBA Other Question
The units digit of expressionpost answer plz

1) 7
2) 2
3) 1
4) 0
 Rohan uses a car to
go to his college from his home. If he drives at 50 km/hr, he reaches the
college 4 minutes late, whereas, if he drives at 60 km/hr, he reaches the
college 1 minute early. What is the distance of the college from his home?

1) 250
2) 300
3) 200
4) 350