How many combinations of numbers less than 8 make their sum=8(repetation of numbers is allowed)

• Y d combination with 4 digit n 5 digit nt included
• 8 years agoHelpfull: Yes(5) No(0)
• 28
  
  Combinations with two numbers (1,7) (2,6) (3,5) (4,4) (5,3) (6,2) (7,1)
  Combinations with three numbers (1,1,6) (1,2,5) (1,3,4) (1,4,3) (1,5,2) (1,6,1) (2,1,5) (2,2,4) (2,3,3) (2,4,2) (2,5,1) (3,1,4) (3,2,3) (3,3,2) (3,4,1) (4,1,3) (4,2,2) (4,3,1) (5,1,2) (5,2,1) (6,1,1)
  Total=28
• 8 years agoHelpfull: Yes(3) No(7)
• i think 4 will be the correct answer
• 8 years agoHelpfull: Yes(1) No(4)
• A+B+C=8O
  NO OF POSSITION IS 10
  NO OF PARTITION IS 2
  THN 10C2=45
• 8 years agoHelpfull: Yes(1) No(3)
• Total number will be 7 which are ((1,7),(7,1),(2,6),(6,2),(3,5),(5,3),(4,4))
• 8 years agoHelpfull: Yes(0) No(3)
• 63....by consider of all combinatin of 2,3,4,5,6,7even8 digit
• 8 years agoHelpfull: Yes(0) No(2)
• Combinations with two numbers (1,7) (2,6) (3,5) (5,3) (6,2) (7,1)
  Combinations with three numbers (1,2,5) (1,3,4) (1,4,3) (1,5,2) (2,1,5) (2,5,1) (3,1,4) (3,4,1) (4,1,3) (4,3,1) (5,1,2) (5,2,1)
  Total=18
• 7 years agoHelpfull: Yes(0) No(0)