A man is running in the Delhi marathon. It takes him 2 seconds to cover 3m. After every 2 seconds the winds throws the man 1m back. How much time will it take the man to cover 148.65m. *

• given that the runner covers 3m in 2 seconds and for every 2 seconds wind throws him 1m back , which means the net distance covered by him in 2 seconds is 2m , so lets say till 146m it has taken him 146 seconds and in the next 2 seconds he will cover 3 mts so , it makes him to greater than 148.65m so 148 is the answer.
• 8 years agoHelpfull: Yes(4) No(2)
• 145 seconds
• 9 years agoHelpfull: Yes(2) No(3)
• fr 4 sec he wil cover 3+(3-1)m=5m. so 148.65/5=29.73
  therefore he covers 148.65m in 29.73*4 sec
  
• 8 years agoHelpfull: Yes(1) No(1)
• 1*2+1=3
  3*3+1=10
  10*2+1=21
  21*3+1=64
  64*2+1=129
  129*3+1=388 (this is wrong)
  388*2+1=777
• 7 years agoHelpfull: Yes(0) No(0)