17,9,15,40,?
(a) 143.5 (b) 32
(c) 132.5 (d)40

• ans:143.5
  17*0.5+.05=9
  9*1.5+1.5=15
  15*2.5+2.5=40
  40*3.5+3.5=143.5
• 8 years agoHelpfull: Yes(0) No(0)
• 1) 17*0.5+0.5=9
  2) 9*1.5+1.5=15
  3) 15*2.5+2.5=40
  4) 40*3.5+3.5=143.5
  5) 143.5*4.5+4.5=650.25
• 8 years agoHelpfull: Yes(0) No(0)