A is 2/3 rd as efficient as B and B is ¾ th as efficient as C. In one day, What will be the fraction of the work done by A alone, compared to all of them working together ?

• answer is 2/9....given A=2/3B and B=3/4C....A+B+C=1...then A=2/9...
• 11 years agoHelpfull: Yes(6) No(3)
• answer 2/9
• 11 years agoHelpfull: Yes(3) No(4)
• swati.. this is the question of ratio ...
  given that- a:b = 2:3 ( efficiency )
  now we take the efficiency of c w.r.to a.
  so because c is equaly efficient as b. then a:b:c = 2:3:3
  so the work done by a w.r.to b+c will be = 2/(3+3)= 1/3 ans.
• 11 years agoHelpfull: Yes(2) No(6)
• ans is 1/3 but dnt knw how..
• 11 years agoHelpfull: Yes(1) No(4)
• sry friends..my answer is not correct....
• 11 years agoHelpfull: Yes(0) No(3)