In a 200 M.. race A beats B by 35 M.. or 7 seconds. A's time over the cause is ______

a. None
b. 47 sec
c. 40 sec
d. 33 sec

• B covers 35m in 7seconds
  B take time =(200*7)/35=40
  A takes time =40-7=33 sec
  
  so option D.
• 8 years agoHelpfull: Yes(24) No(3)
• A beat B by 35 M or 7 s
  means 35/7=5 m/s speed extra
  s=d/t
  t=d/s
  d=200 and s=5
  200/5 = 40 sec total to cover 200 m
  A's time = 40-7=33 sec
• 8 years agoHelpfull: Yes(4) No(0)
• B covers 35m in 7seconds
  B take time =(200*7)/35=40
  A takes time =40)7=47 sec
  
  so option b
• 8 years agoHelpfull: Yes(3) No(11)
• ans. D.=33
  because A beats B
  
• 8 years agoHelpfull: Yes(1) No(0)