Q. Waht is the next number of the following sequence
48,24,35,7,16,8,75,1580,40

• 80
  Make a group of 4 terms [a,b,c,d]=[4,8,4,32],[6,9,3,54], [8,10,2,x]
  [a,b,(c=b-a),(d=a*b)]
  [4,8,(8-4),4*8],[6,9,(9-6),6*9],[8,10,(10-8),(8*10)]
• 10 years agoHelpfull: Yes(5) No(1)
• series is like 4, 8, 4, 32.... 6, 9, 3, 54..... 8, 10, 2,_
  1st number +3rd number= 2nd number
  1st number* 2nd number= 4th number
  4+4=8 4*8=32
  6+3=9 6*9=54
  8+2=10 8*10=80
  so ans is 80
• 10 years agoHelpfull: Yes(2) No(3)
• (4,8)4(32)(6,9)3(54)(8,10)2(80)
  80 is the answer..
  as the each fourth two entities in braces is product of first two
  like (32) is product of (4,8)
  and the no not in braces are simply an decreasing series 4,3,2,1
  so series would be 4,8,4,32,6,9,3,54,8,10,2,80,1 and so on..
• 10 years agoHelpfull: Yes(2) No(0)
• ans =8*10=80
  it have 4 series
  4,6,8,....
  8,9,10,...
  4,3,2,....(diffrence of first 2 series)
  32,54,80(multipy first 2 series)
• 10 years agoHelpfull: Yes(1) No(1)
• after 15 its comma and then 80
  48/24=2; 35/7=5
  16/8=2; 75/15=5
  80/40=2; x/y=5
  
  if we observe 35,75,x are in series with a difference of 40. so x=75+40=115
  similarly 7,15,y are in series with a difference of 8. so y=15+8=23
  
  x/y=115/23=5 It satisfies the problem so next two terms are 115 & 23.
• 9 years agoHelpfull: Yes(1) No(0)
• 80
  
  (4*8)=32
  (6*9)= 54
  8*10 =80
  
• 10 years agoHelpfull: Yes(0) No(0)