Vinoth can complete a painting work in 20 days. Prakash can do the same work in 25 days. They start the work together but Vinoth quit after 3 days of work. How many days are required to complete the remaining painting work by Prakash.

• Vinoth can complete the painting work in one day is 1/20
  Prakash can complete the same work in one day is 1/25
  Both of them can complete the work in 1/20+ days=9/100( 1/20+1/25)
  they must have completed in three days=9/100*3=27/100
  Remaining work to be done is by Prakash =1-27/100=73/100
  For one work, Prakash can do in 25 days
  For 73/100 work, he can do in 73/100*25=73/4days or 18.25 days
  
• 12 years agoHelpfull: Yes(3) No(0)
• Prakash can do the rest in 18.25 days
  
  both has done in 3 days 27/100
  and rest 73/100 is done by prakash in=73/100*25=18.25 days
• 12 years agoHelpfull: Yes(1) No(0)
• 18.5 days
  
• 12 years agoHelpfull: Yes(0) No(2)
• 18.25 days
• 12 years agoHelpfull: Yes(0) No(1)
• There was a typographical mistake in the third line
  Both of them can work in one day(third line)
• 12 years agoHelpfull: Yes(0) No(0)