Find the next number in the series 3, 4, 6, 9, 13,?

• 18
  4-3=1
  6-4=2
  9-6=3
  13-9=4 So next diff will be 5....
  So the next no. will be 5+13=18
• 13 years agoHelpfull: Yes(7) No(0)
• Ans=18
  Adding series of number in between every number...
  first number is 3+1=4 gives the second number..
  second number is 4+2= 6 gives the third number...
  Third number is 6+3= 9 gives the fourth number..
  fourth number is 9+4= 13 gives the fifth number...
  hence the next number will be 13+5 =18...
• 10 years agoHelpfull: Yes(3) No(0)