Q. Waht is the next number of the following sequences

1)4,2,4,8,6,8,16....

2)-12,18,6,-15,10,-5,28,42,14,9,6....

3)o.3.0.5,0.25,2.3,3.5,4.25.....

• 1) 4.... 2,4... 8,....6,8....16....10,12
  clearly, there are two series,
  4,8,16 (multiply by 2)
  and
  2,4,6,8,10,12 (add 2)
  2)-12,18,6,-15,10,-5,28,42,14,9,6....
  -12/-2=6
  18/3=6
  -15/3=-5
  10/-2=-5
  28/2=14
  42/3=14
  9/3=3
  6/2=3
  so ans is 3
  
• 10 years agoHelpfull: Yes(2) No(1)
• 1) 10,16
  2) 3
  3) 5.3,6.5,7.25
• 10 years agoHelpfull: Yes(0) No(0)
• 1) 14,16 (4 -2 +2, 8 -2 +2, 16 -2, +2)
  2) 3
  3) 4.3, 6.5
• 10 years agoHelpfull: Yes(0) No(0)