1) 11, 13, 17, 19, 23, 29, 31, 37, 41 _
2) 8, 24, 12, 36, 18, 54
3) 7, 26, 63,124, 215, 342

• 2) 8 , 24 , 12 , 36 , 18 , 54 , x
  
  8 * 3 = 24 , 24 / 2 = 12
  12 * 3= 36 , 36 / 2 = 18
  18 * 3= 54 , 54 / 2 = x
  
  => x = 27
• 12 years agoHelpfull: Yes(40) No(1)
• 1)ans is 43
  prime numbers
  
• 12 years agoHelpfull: Yes(25) No(0)
• 3)ans is 511
  So the series is like x^3-1
  2^3-1,3^3-1,4^3-1,5^3-1,6^3-1,7^3-1,8^3-1
• 12 years agoHelpfull: Yes(22) No(1)
• 2)ans is 26
  consider alternate numbers 8,12,18 so the diff is 4,6 so the next num is 26
• 12 years agoHelpfull: Yes(6) No(5)
• 1) 43 prime no
  2) 8,12,18 dif increase by 2 and 24,36 ,54 dif inc by 4 so ans is 26
  3)511
  
• 12 years agoHelpfull: Yes(5) No(0)
• 2)ans is 27.....see the difference between alternative digit like
  2nd digit-3rd digit=3rd digit 24-12=12
  4th digit-5th digit=5th digit 36-18=18
  6th digit-7th digit=7th digit 54-27=27
• 12 years agoHelpfull: Yes(3) No(3)
• 1)ans=43---prime numbers
  2)ans=27---*3 and /2
  3)ans=511---2cubes-1 3cubes-1 same way 8cube-1
  
• 12 years agoHelpfull: Yes(2) No(0)
• 1,ans 43 prime number
• 12 years agoHelpfull: Yes(0) No(1)
• 1. 43 (Next Prime No. in series)
  2. 8*3
  24/2 in this manner Ans is 27.
  3. 511.
  
• 12 years agoHelpfull: Yes(0) No(0)
• here i take two series 8,12,18 ,in which 12/8=1.5 &18/12=1.5 so next hv ratio of 1.5 so it is 18*1.5=27 and 24 36 54 is 2nd one has also ratio of 1.5.
• 12 years agoHelpfull: Yes(0) No(0)
• 1.ans is 43..all r prime number
• 11 years agoHelpfull: Yes(0) No(0)
• 2)8,24,12,36,18,54,x
  8*3=24
  12*3=36
  18*3=54
  same way 54*3=162
• 10 years agoHelpfull: Yes(0) No(0)