3i-Infotech Company Numerical Ability Time Distance and Speed

Q. A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

Option
A. 5 sec
B. 6 sec
C. 7 sec
D. 10 sec

Read Solution (Total 2)

Option B 6 sec
Relative speed=60+6=66 kmph=66*5/18=55/3
t=110*3/55=6
12 years agoHelpfull: Yes(0) No(0)

t=l1+l2/s1+s2
t=length of train/60+6 (length of man not consider)
t=110/66
7 years agoHelpfull: Yes(0) No(0)

3i-Infotech Other Question

Q. Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is:

Option
A. 9
B. 9.6
C. 10
D. 10.8 Q. A train travelling at a speed of 75 mph enters a tunnel 3 miles long. The train is mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

Option
A. 2.5 min
B. 3 min
C. 3.2 min
D. 3.5 min