In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is:

A. 40 sec B. 47 sec
C. 33 sec D. None of these

• C.33sec
  
  speed of B=s2.
  A's time of course=t.
  
  200=s2*(t+7) ---(eq 1)
  200-35=s2*t ---(eq 2)
  from these 2 eqs, we get t=33sec.
• 11 years agoHelpfull: Yes(3) No(2)
• B runs 35 m in 7 sec.
  
  B covers 200 m in 7 x 200 = 40 sec.
  35
  B's time over the course = 40 sec.
  
  A's time over the course (40 - 7) sec = 33 sec.
• 11 years agoHelpfull: Yes(2) No(1)
• Now answer is 33 secons.
  Initially A beats B
  The distance is 35 meters. Then time period is 7secons
  
  We have to find the A speed. Is 5m/s.
  Then you calculating the total A reach the 33 secons
  
• 7 years agoHelpfull: Yes(0) No(0)