A fast typist can type some matter in 2 hours and a slow typist can type the same in 3 hours. If both type combinely, in how much time will they finish?

• 1/2 + 1/3 = 5/6
  ans. 6/5= 1.2 hrs
• 11 years agoHelpfull: Yes(6) No(0)
• The fast typist's work done in 1 hr = 1/2
  The slow typist's work done in 1 hr = 1/3
  If they work combinely, work done in 1 hr = 1/2+1/3 = 5/6
  So, the work will be completed in 6/5 hours.
  i.e., 1+1/5 hours = 1hr 12 min.
• 11 years agoHelpfull: Yes(4) No(0)
• answer=2xy/(x+y)
  x=2,y=3
  answer=2*2*3/(2+3)
  =1.2hr
• 10 years agoHelpfull: Yes(0) No(1)