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.
A) 4 3/3 km	B) 4 3/6 km	C) 4 3/8 km	D) 4 9/8 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?