Vishwanath
Monday, February 18, 2013
21.30. A train 110 m long passes a man, running at 6 kmph in the direction opposite to that of the train, in 6 seconds The speed of the train is
A. 54 km/hr B. 60 km/hr
C. 66 km/hr D. 72 km/hr
Answer:B
Speed of the train relative to man = (110 / 6 ) m/sec
= (110 / 6 x 18 /5) km/hr
= 66 km/hr
speed of the train be x kmph.
Relative Speed =(x + 6 ) kmph.
= x + 6 = 66
x = 60.
Title : Trains 21Q
Description : 21.30. A train 110 m long passes a man, running at 6 kmph in the direction opposite to that of the train, in 6 seconds The speed of the trai...
Rating : 5