Walking at the rate of 5kmph a man cover certain distance in 5hr. Running at a speed of 15 kmph the man will cover the same distance in.  Choose the correct choice from the following answers
A) 12 min B) 36 min C) 40 min D) 48 min E) 60 min
Distance = Speed * time     5*5= 
<gadget id="calculator">  5*5</gadget>
<output>25</output>
25km   New Speed= 15 kmph   Therefore time = 25/15 = 5/3 =36min   Answer : 36 min
<result>B</result>
Walking at the rate of 5kmph a man cover certain distance in 5hr. Running at a speed of 15 kmph the man will cover the same distance in.