1.

A Person X started at 3 hours earlierat 40km/h from a place P, then another person Y followed him at 60km/h. Started his journey at 3 O'clock, afternoon. What is the difference in time when X was 30 km ahead of Y and when Y was 30 km ahead of X?

Answer»

2h
3h
4h
3.5h

Answer :C


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