if a printer A prints 60 words per minute and printer b prints 80 words in one minute printer A starts at 7.47 and printer b at 8.07 wen ll printer b catch up wit printer A….?

• 
  at 9:07
  
  additional words printed by A till 8:07 = 60*20 = 1200
  B will catch diff of 1200 words after 1200/20 = 60 min from 8:07 i.e. at 9:07
• 13 years agoHelpfull: Yes(6) No(3)