65) A man, a women and a child can do a piece of work in 6 days,man can do it in 14 days, women can do it 16 days, and in how many days child can do the same work?

• let child alone do the work in x days so
  (14*16*x)/(14*16+14*x+16*x)=6
  x=336/11 days
• 10 years agoHelpfull: Yes(12) No(0)
• 1/6-(1/16+1/14)
• 10 years agoHelpfull: Yes(10) No(0)
• Man+women+child 1day work=1/6
  man 1 day work=1/14
  women 1day work=1/16
  child 1 day work=1/6-1/14-1/16=11/336
  wrk will be completed in 336/11
  
• 10 years agoHelpfull: Yes(3) No(0)
• man 1 day work=1/14
  women 1 day work=1/16
  man,women,child 1 day work=6
  so child 1 day work=1/6-(1/14+1/16)=336/11=30 6/11 days
• 10 years agoHelpfull: Yes(2) No(0)
• 11 days because just take the least common multiple of 6,14 and 16.You ll get 336(now 336 unit is total work).With the help of this you can get the unit/day of each.Put the values and you ll get the answer.
• 10 years agoHelpfull: Yes(0) No(1)