Two men A and B start from place X walking at 4 ½ kmph and 5 ¾ kmph respectively. How many km apart they are at the end of 3 ½ hours if they are walking in the same direction?	Select the correct option
A) 4 3/9 km
B) 5 3/8 km
C) 4 3/8 km
D) 6 3/8 km
E) 7 3/8 km
RS = 5 ¾ - 4 ½ = 1 ¼   T = 3 ½ h.   D = 5/4 * 7/2 = 35/8 = 4 3/8 km   Answer:4 3/8 km
<result>C</result>
Two men A and B start from place X walking at 4 ½ kmph and 5 ¾ kmph respectively. How many km apart they are at the end of 3 ½ hours if they are walking in the same direction?