1) 2,12,30,56,90, _
2) 2,12,34,74,138, _
3) 10,15,12,17,14,10,_
4) 48,46,42,38,_

• 2,12,30,56,90, 132
  
  1*2=2
  3*4=12
  5*6=30
  7*8=56
  9*10=90
  11*12=132
• 12 years agoHelpfull: Yes(55) No(1)
• 2) answer=232
  t=Difference b/w the numbers are 2 to 12=10,then 12 to 34=22,then 34 to 74=40,then
  74 to 138=64.
  10,22,34,40 in this diff between the number is 12 18 24 then next is 30.
  so add 30+64=94.
  so add 94+138=232 answer
• 12 years agoHelpfull: Yes(20) No(7)
• 2)1^3 +1=2
  2^3+ 4=12
  3^3 +7=34
  4^3 +10=74
  5^3 +13=138
  so next
  6^3+ 16=232
  Ans
  
• 11 years agoHelpfull: Yes(16) No(1)
• 48-2=46
  48-6=42
  48-10=38
  48-14=34ans
• 11 years agoHelpfull: Yes(12) No(0)
• 48,46,42,38,x
  48-42=6
  46-38=6
  42-x=6
  x=36
• 11 years agoHelpfull: Yes(10) No(17)
• 3) answer=16
  the series 10,12,14,16..
  In this 2 is increased consequently
  
• 12 years agoHelpfull: Yes(9) No(11)
• 10,15,12,17,14,10
  take alternate series
  10,12,14
  so d nxt number would be 16
• 11 years agoHelpfull: Yes(9) No(0)
• 1)ans=132---1*2=2,3*4=12,5*6=30,7*8=56,9*10=90,11*12=132
  2)ans=232---triangle series subtract two times u ll get logic
  3)ans=16---10 12 14 16
  4)ans=30--- -2 -4 -4 -8
  
  
• 12 years agoHelpfull: Yes(7) No(5)
• 4) answer=36
• 12 years agoHelpfull: Yes(5) No(19)
• 4)I think ans is 36
  6*8=48
  6*7=42
  6*6=36
  
• 11 years agoHelpfull: Yes(4) No(5)
• 1)2,12,30,56,90,x
  12-2=10, 30-12=18, 56-30=26, 90-56=34, x-90=34+8=42 =>x=132 ans
  each difference is added by 8 therefore 132 is ans
• 11 years agoHelpfull: Yes(3) No(1)
• 2, ans is 232..12-2=10,34-12=22,74-34=40,138-74=64.diffference between 22-10=12,40-22=18,64-40=24.that is 12+6=18,18+6=24,so 24+6=30.then 30+64=94.ans is 94+138=232
• 12 years agoHelpfull: Yes(1) No(1)
• 1. 132.
  4. 32.
• 12 years agoHelpfull: Yes(0) No(2)
• 2,12,30,56,90 i think accoding to this series 2=1*2,
  30=5*6,
  90=9*10
  so next element can be 910 ....
• 12 years agoHelpfull: Yes(0) No(5)
• 1)134 is ans
  12-2=10
  18-10=8
  30-12=18
  26-18=8
  56-30=26
  36-26=8
  90-56=36
  x-36=8=>44
  x-90=44=>x=134
  
• 11 years agoHelpfull: Yes(0) No(2)
• 4) 48-2 = 46
  48-6 = 42
  48-10 = 38
  48-14 = 34
  So ans is 34
• 8 years agoHelpfull: Yes(0) No(1)
• 4)
  Start with the number 48.
  48-2=46
  48-6=42
  48-10=38
  48-14=34
  The intervals between 2, 6, 10, and therefore 14 are all 4.
  
  So the next number is 34.
• 7 years agoHelpfull: Yes(0) No(0)