A is twice as good a workman as B. Together they finish a piece of work in 18 days. Then B can do a similar work by himself in :

(A) 54 days

(B) 27 days

• B can complete work in 54 days and A can complete work in 27 days.
  
  It is simple to get the ans.
  If 3B ( A+B= 2B+B) can do work in 18 days,
  one B will complete work in 54 days.
• 11 years agoHelpfull: Yes(6) No(3)
• suppose b can do work in x days
  a can do work in 2x days
  
  1/x+1/2x=1/18
  2x^2=54x
  x=27
  so b can do work in 27 days(ans)
  
• 11 years agoHelpfull: Yes(5) No(5)