viru & dhoni starts running in clockwise direction at the same time and ratio of their speed is 5:3. it takes 0.5km to complete one round then how much distance will viru cover when he crosses dhoni 6th time?

• 7.5 km is the ans
• 11 years agoHelpfull: Yes(20) No(0)
• viru & dhoni will meet every 2.5 round 0f circle.
  2.5 * .5= 1.25 km
  means at every 1.25 km they will meet.
  viru meets dhoni 6th times.
  so viru will cover 1.25*6=7.5 km
  and dhoni will cover .75*6=4.5 km
• 11 years agoHelpfull: Yes(12) No(1)
• Ans will be 7.5 km.
  Let the speed of viru and dhoni be 5x and 3x respectively.
  ( Since we know that if two or more person starts moving from same pt on the circumference of circle on the same path in the same direction around the circle they will first meet in the lcm of time the fastest runner takes in totally overlapping each other.)
  so to find overlapping time we have to find relative speed of both person (as here only two persons are given)
  so their relative speed is 2x.
  let they will meet after t sec.
  so, 2xt=0.5
  t=0.25/x
  hence viru will overlap dhoni at every 0.25/x unit time.
  now distance traveled upto first meeting by viru= 5x*t =1.25 km .
  hence viru will cover 1.25*6= 7.5 km when he will cross dhoni 6th time.
• 9 years agoHelpfull: Yes(6) No(0)
• is it 15 km
  
• 11 years agoHelpfull: Yes(3) No(7)
• ans is A but
  
  first meet = 330/2= 165s
  second meet after completing one round bcoz clock waise movement and speed is difer. so after 1 round difference b/w them is 440-88. now cover this distance by a is in the tyme 352/2= 176. 44s taken by B to i round = 176+44=220.
  total tym= 220+165= 375/60= 6:25s.
  
• 10 years agoHelpfull: Yes(3) No(3)
• 50 km...
  
  
  
  
  
  
• 11 years agoHelpfull: Yes(2) No(6)
• @praveen how viru & dhoni will meet every 2.5 round 0f circle.?
  plz explain.
• 10 years agoHelpfull: Yes(2) No(0)
• they meet after 2.5 km for 1st time .. so 6th time they meet 15 km
• 11 years agoHelpfull: Yes(1) No(1)
• ans is 5 km
  
• 11 years agoHelpfull: Yes(0) No(4)
• viru runs 4kms kms so he may runs 2.4
  2.4 kms
  
• 11 years agoHelpfull: Yes(0) No(2)