self Exam Numerical Ability Time Distance and Speed

Q. Two trains move from station A ans station B towards each other at speed of 50km/hr and 60km/hr. at meeting point the driver of the second train felt that the train has covered 120km more. What is the distance between A and B?

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self Other Question
Q. A train travelling at a speed of 90km/hr follows a goods train after 6hrs from a station and overtakes it in 4hrs. What is the speed of the train? Q. 2 men & 3 women can finish a piece of work in 10 days, while 4 men can do it in 10 days. How many days will 5 men women take to finish it?