A man takes 5hr 45min in walking to certain place and riding back. He would have gained 2hrs by riding both ways. The time he would take to walk both ways is? Answers.
A) 7 hr 45 min	B) 7 hr 15 min	C) 6 hr 45 min	D) 6 hr 15 min	E) 7 hr 10 min
Let x be the speed of walked   Let y be the speed of ride   Let D be the distance   Then D/x + D/y = 23/4 hr -------------------(1)   D/y + D/y = 23/4 – 2 hr   D/y = 15/8 ----------------------------------(2)   substitute 2 in 1   D/x + 15/8 = 23/4   D/x = 23/4 -15/8 =46-15/8 =31/8   Time taken for walk one way is 31/8 hr   time taken to walk to and fro is 2*31/8 = 31/4 hr   =7 hr 45 min   7 hr 45 minnswer : 7 hr 45 min.
<result>A</result>
A man takes 5hr 45min in walking to certain place and riding back. He would have gained 2hrs by riding both ways. The time he would take to walk both ways is?