During a given week a person spends 1/6 of his time preparing flow chart,4/7 of his time coding and the rest of the time in debugging the programs. If he works 42 hours during he week , how many hours did he spend debugging the program?
a)9 hours b)12 hours c)8 hours d)11 hours

• 11
  1-1/6-4/7=11/42
  11/42*42=11
• 4 years agoHelpfull: Yes(2) No(0)
• Total time =Flow chart+coding+debugging-----1)
  
  time taken for flow chart= 1/6*42 = 7 hrs
  time taken for coding = 4/7*42 = 24 hrs
  
  Substitute these values in equation 1)
  42= 7 + 24 + Debugging
  42-31 = Debugging
  
  Time taken for Debugging is 11 hrs.
• 4 years agoHelpfull: Yes(2) No(0)