How many seconds will a 750 meter long train moving with a speed of 63 km/hr take to cross a man walking with a speed of 3 km/hr in the direction of the train ? Choose the correct option
A) 48
B) 36
C) 26
D) 11
E) 45
Explanation:   Here distance d = 750 mts   speed s = 63 - 3= 
<gadget id="calculator">63 - 3</gadget>
<output>60</output>
60 kmph= 60 x 5/18 m/s   time t = = 45 sec.   Answer: 45
<result>E</result>
How many seconds will a 750 meter long train moving with a speed of 63 km/hr take to cross a man walking with a speed of 3 km/hr in the direction of the train ?