Two typist of varying skills can do a job in 6 minutes if they work together.If the frst typist types alone for 4 minutes and then the second typist typd alone for 6 minutes they would be left with 1/5 of the whole work. How many minutes would it take the slower typist to complete the typing job working alone?

• the slower typist will complete in 15 minutes..
  the faster typist will complete in 10 minutes..
• 11 years agoHelpfull: Yes(2) No(1)