A can do a piece of work in 10 days abd b in 12 days, how long will it take for both to work together?

• 1/10+1/12=11/60.....hence ans is 60/11
• 11 years agoHelpfull: Yes(2) No(0)
• take the lcm to find the total units of work
  so lcm of 10 and 12 is 60
  total 60 units of work
  efficiency of a is 60/10=6
  efficiency of b is 60/12=5
  
  total efficiency is 11
  so they both will cmplt it in 60/11 days
• 11 years agoHelpfull: Yes(2) No(0)
• 6 days.
  
  
  
  
  
  
• 11 years agoHelpfull: Yes(0) No(2)