Peter can cover a certain distance in 1 hr. 24 min. by covering two-third of the distance at 4 kmph and the rest at 5 kmph. Find the total distance. Options.
A) 2 B) 3 C) 4 D) 5 E) 6
Let the total distance be x km . Then,   =(2 x/3)/4 + (1x/3)/5   = 7/5 = x/6 + x/15 = 7/5   = 7x = 42   = x = 6   Answer is 6.
<result>E</result>
Peter can cover a certain distance in 1 hr. 24 min. by covering two-third of the distance at 4 kmph and the rest at 5 kmph. Find the total distance.