A car moves at the speed of 80 km/hr. what is the speed of the car in metres per second?
A. 8 m/sec B. 20x1/9 m/sec
C. 21x2/9 m/sec D. 22x2/9 m/sec

• D. 22x2/9 m/sec
  
  A car moves at the speed of 80 km/hr.
  or
  80*1000/3600 = 80*5/18 = 200/9 m/sec 22 2/9 m/sec
• 12 years agoHelpfull: Yes(3) No(0)
• Ans:D
  Formula
  For convert km/hr into m/sec=5/18
  For convert m/sec into km/hr=18/5
  
  ie. 80*(5/18)
  ==>22* 2/9 m.sec.
• 12 years agoHelpfull: Yes(0) No(0)
• 80*(5/18)
  ==>22* 2/9 m.sec.
• 9 years agoHelpfull: Yes(0) No(0)
• Car speed=(80*5/18)m/sec
  =(40*5/9)m/sec
  =200/9 m/sec
  By using numerator and Denominator formula
  =22*2/9
  =(198+2)9
  =200/9
  
  Ans==22*2/9 m/sec
• 9 years agoHelpfull: Yes(0) No(0)
• ans :D
  80*5/18=40*5/9=200/9
  we can write this inthe form of 22*2/9
• 6 years agoHelpfull: Yes(0) No(0)
• speed=80km/hr
  in metres per second=80*5/18
  hence, speed of car in metres per second=B.20x1/9
• 5 years agoHelpfull: Yes(0) No(0)