Distance ranging from A and B is 72 km. 2 men started walking from A and B at the identical time towards every other. The person who started from A travelled uniformly with avg. speed four kmph. While the other man travelled with varying speeds as follows: In 1st hour his speed was two kmph, in the 2nd hour it was 2.5 kmph, in the 3rd hour it was three kmph, and so on. When will they meet every other?

• Suppose they will meet aftr x hr.
  So a goes 4x km
  Nd b goes x/2(4+(x-1)*.5)
  nd if we add both which is equal to 72
  nd x=9
• 9 years agoHelpfull: Yes(0) No(3)