1,46,163,388,757,?

• its a triangular series i.e the difference between the current series form a new series as follows
  series 1:1 46 163 388 757 ?
  series 2: 45 117 225 369 ?
  series 3: 72 108 144 ?
  series 4: 36 36 ?
  
  missing term in series 3:144+36=180
  missing term in series 2:369+180=549
  missing term in series 1:757+549=1306
  
  
• 12 years agoHelpfull: Yes(27) No(2)
• ans 1036 its a triangular series
• 12 years agoHelpfull: Yes(2) No(8)
• explanation plz
• 12 years agoHelpfull: Yes(0) No(2)
• 46-1=45 117-45=72 108-72=36
  163-46=117 225-117=108 144-108=36
  388-163=225 369-225=144 therefore ,x-36=144
  757-388=369 y - 369 =x x=180
  z - 757=y y=180+369=549
  z=757+549=1306
  1,46,163,388,757,1306..
• 7 years agoHelpfull: Yes(0) No(1)