Walking at the rate of 8kmph a man cover certain distance in 4hr 45min. Running at a speed of 19 kmph the man will cover the same distance in.
Choose the correct choice from the following answers:
A) 100 min
B) 110 min
C) 140 min
D) 120 min
E) 150 min
120 ministance = Speed * time     8*19/4= 
<gadget id="calculator">  8*19/4</gadget>
<output>38</output>
38km   New Speed= 19kmph   Therefore time = 120 min/S = 38/19= 120 min   Answer : 120 min.
<result>D</result>
Walking at the rate of 8kmph a man cover certain distance in 4hr 45min. Running at a speed of 19 kmph the man will cover the same distance in.