a can complete a work in 6 days while b can complete the same work in 12 days.if they work togetherand complete it,the portion of the work done by a is how much?

• a=6
  b=12
  total work=12 unit ( Lcm of 6 and 12)
  a=2 unit per day
  b=1 unit per day
  total day=4 ( (12*6)/(12+6))
  a total work portion=(4*2)/total unit = 8/12=2/3 ans.
• 5 years agoHelpfull: Yes(2) No(0)
• a=6
  
  total work=12
  a=2
  b=1
  total day=4
  a total work portion=8/12=2/3
• 7 years agoHelpfull: Yes(0) No(3)