Two trains 137m and 163m in lengths are running towards each other on parallel lines one at the rate...........

Quantitative Aptitiude (CLAT) Time & distance

Two trains 137m and 163m in lengths are running towards each other on parallel lines, one at the rate of 42 kmph and another at 48 kmph. In what time will they be clear of each other from the moment they meet?

10 sec

12 sec

14 sec

15 sec

Explanation:

Explanation: 1st case time taken = 40/5 = 8 hours

2nd case = 40/8 = 5 hours

Scheduled time = 8 hours – 80 minutes = 6 hours and 40 minutes. If Ram walks at speed of 8 km /hour, then he takes 5 hours to reach the destination and the fixed time is 6 hours and 40 minutes. He reaches early by 1 hour and 40 minutes.