The distance between two stations is 100 km. 2 cars start from A and B at the same time and return t

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16 Nov 2021 station

The distance between two stations is 100 km. 2 cars start from A and B at the same time and return to the original station with speed 48 km/hr and 64 km/hr. The time gap between their meeting twice will be

OPtion

1) 10/7 hr
2) 20/17 hr
3) 25/14 hr
4) 30/7 hr
5) 27/14 hr
6) 3 hr
7) 20/7 hr
8) 4 hr
9) 5 hr
10) none of these

Solution

Total distance covered between their meetings is 200 KM travelled together by 2 cars.
total combined speed = 64+48 = 112
Time take to cover 200KM with 112 KM/H speed is
200/112
=25/ 14 Hour

Correct Option: 3 Best Solution (1)