Ali and Faizer are 27m apart. They both start walking and meet 9 hrs later, if they travel in the same direction and meet after 3 hrs if they walk in opposite dirction, Aliâ€™s speed must most likely be ? Choices:	A) 2 m/h	B) 7 m/h	C) 6 m/h	D) 9 m/h	E) 0 m/h
Explanation:   let, speed of Ali=X mph and Faizer=Y mph   Now, relative speed when Ali is walking int the same direction with Faizer= (X-Y)mph   hence, according to question, 27/(X-Y)=9 ; solving X-Y=3; --- (1)   Now relative speed when walking in the opposite direction= (X+Y) mph   hence, according to question, 27/(X+y)=3; solving X+Y=9; --- (2)   solving 1 and 2 we get X=6 and Y=3, where X is the speed of Ali.   Answer: 6 m/h
<result>C</result>
Ali and Faizer are 27m apart. They both start walking and meet 9 hrs later, if they travel in the same direction and meet after 3 hrs if they walk in opposite dirction, Aliâ€™s speed must most likely be ?