The cost of 1 book and 1 pen is 60 rupee. If all the costs are multiple of 5, then possible no. of outcomes for the non zero cost of 1 book and 1 pen will be

• 5 55
  10 50
  15 45
  20 40
  25 35
  30 30
  6 it is
• 12 years agoHelpfull: Yes(2) No(1)
• 5x+5y=60..// a/q price is multiple of 5.
  x+y=12.
  so total possible combinations are..
  1 11
  2 10
  3 9
  4 8
  ............so on after counting it.. //as in question given for non-zero value
  so ans is 11.
• 12 years agoHelpfull: Yes(2) No(1)