A painter works on a job for 10 days and is then joined by her helper. Together they finish the job in 6 more days. Her helper could have done the job alone in 30 days. How long would it have taken the painter to do the job alone?

• 20 days
  helper does 1/5 of the total work.
  and painter does 4/5 of the work in 10+6 days.
  so work done by painter in 16*5/4+20 day
• 10 years agoHelpfull: Yes(0) No(0)