. Tim and Elan are 90 km from each other, they start to move each other simultaneously, Tim at speed 10 and Elan 5kmph, if every hour they double their speed what is the distance that Tim will pass until he meet Elan?

• Tim and Elan will cover the distance in ratio of 2: 1 in same time.
  so out of 90 kms, Tim will travel 60 kms and Elan will travel 30 mtrs.
• 12 years agoHelpfull: Yes(87) No(7)
• 1st hour-- > Tim travels 10km Elan travels 5 km=15km
  2nd hour-- > Tim travels 20km Elan travels 10 km=30km
  distance left between the two=90-(15+30)=45km
  3rd hour-- >speed will be 40kmph for tim and 20 kmph for elan...
  so ratio of their distance travelld in the third hour is= 40:20=2:1
  so distance travelled by tim before meeting elan =(2/3)*45=30km
  total distance travelled by tim=10+20+30=60 km
• 12 years agoHelpfull: Yes(42) No(4)
• starting speeds of tim and elan are in the ratio of 2:1,both of them doubles their speeds every hour so ratio remains same.
  hance they will cover distance in the ratio of 2:1.
  tim will cover 60km and elan will cover 30km.
• 12 years agoHelpfull: Yes(16) No(3)
• 1st hr = tim + Elan travels ->(10+5=15) ,therefore 90-15=75 miles remaining
  2nd hr=tim + Elan travels ->(20+10=30),therefore 75-30=45 miles remaining
  3rd hr=40 and 20 in b/w 15,30 they alrdy covered,
  soooo tim as covered 10+20+30=60 km
• 9 years agoHelpfull: Yes(1) No(0)
• tim=10
  elan=5
  every 1hr speed will be double
  10 5
  20 10
  40 20
  80 40
  dist=90km
  90-80=10
  90-40=50
  10+50=60 ans.
  20
• 8 years agoHelpfull: Yes(0) No(0)