Q. What is the next number of the following sequence
2, 1, 4, 3, 6, 6, 8, 10, 10, ?, ?

• there are two series
  (2,4,6,8,10, ) & (1,3,6,10, )
  in 1st series next term is 2 more than previous so (2,4,6,8,10,12 )
  in 2nd series next term is 10+5=15
  so next two term
  15,12
  
• 10 years agoHelpfull: Yes(76) No(3)
• Ans = 15
  Soln -
  There are 2 series
  1st is addition of 2 i.e
  2+2=4
  4+2=6
  6+2=8
  8+2=10
  other series is addition of sequence 2,3,4, and so on starting from 1
  1+2=3
  3+3=6
  6+4=10
  10+5=15
  
  
• 10 years agoHelpfull: Yes(8) No(1)
• here 1st,3rd,5th,7th,9th are divisible by 2 so 11th number is 12
  2nd,4th,6th,8th numbers are
  1+2=3 is 4th num
  3+3=6 is 6th num
  6+4=10 is 8th num
  next 10th place number is 10+5=15
  so ans is 15,12
• 10 years agoHelpfull: Yes(5) No(0)
• 2,4,6,8,10,12
  1,3,6,10,15
• 10 years agoHelpfull: Yes(3) No(0)
• 1.alternate digits are multiples of 2..from this last digit may come 12
  2.and even places of the digits are increses exponentially +1,+2,+3,..so the next no will come +4=15,
  the sequence is 2,1,4,3,6,6,8,10,10,15,12
• 10 years agoHelpfull: Yes(2) No(0)
• 15 and 12
  two series are present alternately
  series1: 2,4,6,8,10,12( here 2 is added to next term in the series)
  series2: 1,3,6,10,15( here incrementing order is added that is to get 2nd term we add 2 to 1st term, to get the 3rd term we add 3 to the 2nd term and so on..)
• 10 years agoHelpfull: Yes(1) No(0)
• (!)2 4 6 8 10
  (!!) 1+2=3+3=6+4=10=10+4=14
  Answer is 14. First series in even numbers and in second series numbers added to the next number in sequence like 1 2 3 4 so at the end after 10 we have to add 4 in 10 so 10+4=14
• 10 years agoHelpfull: Yes(0) No(1)
• ans: 15,12
  it is combination of two series
  1,3,6,10,15 (position+previous number)
  2,4,6,8,10,12 (differece b/t numbers is 2)
• 10 years agoHelpfull: Yes(0) No(0)
• here in the first series 2,4,6,8,10 so next will be 12 as each term is incrementing by 2
  and in second series 1,3,6,10 each term is incrementing than the next term is 2,3,4,5 so next no will be 15.
  
  12 and 15 will be the next term
  
• 10 years agoHelpfull: Yes(0) No(0)
• 15,12 this is alter native series
  
• 10 years agoHelpfull: Yes(0) No(0)
• Ans is 15,12.
• 10 years agoHelpfull: Yes(0) No(1)
• 12,15......
• 10 years agoHelpfull: Yes(0) No(1)
• 2,4,6,8,10,12..multiples of 2
  1,1+2,3+3,6+4,10+5......
  2,1,4,3,6,6,8,10,10,15,12..
  
• 10 years agoHelpfull: Yes(0) No(0)
• 15,12
  we hv.....2,4,6,8,10 and 1,3,6.10
  1st series is multiples of 2 so it is 12
  and in 2nd add 5 to 10 i.e 15
• 10 years agoHelpfull: Yes(0) No(0)
• 2->4->6->8->10->12
  1->3->6(5+1))->10(7+3)->14(9+5)
  so nxt digit will be 14,12
• 10 years agoHelpfull: Yes(0) No(0)
• 12,15
  series following 2,4,6,8,10 so next number should be 12
  another series 1,3,6,10 so next number should be 15
• 10 years agoHelpfull: Yes(0) No(0)
• starting from 2 alternative digits sequence differ by 2 and start 4m 1 alternative digits differ by 2,3,4,5
  so ans is 12 n 15
• 10 years agoHelpfull: Yes(0) No(0)
• separate odd position nums and evens position nums
  2 4 6 8 10 -- differece is 2 so next num is 12
  1 3 6 10 15 -- diffrence is increment n+1, so next num is 15
• 10 years agoHelpfull: Yes(0) No(0)
• 2,1,2+2=4,1+2=3,4+2=6,3+3=6,6+2=8,6+4=10,8+2=10,10+5=15,10+2=12
  ans:15,12
• 10 years agoHelpfull: Yes(0) No(0)
• ans is 15,12
• 10 years agoHelpfull: Yes(0) No(0)
• even places 1,3,6,10 15
  odd places 2,4,6,8,10 12
• 10 years agoHelpfull: Yes(0) No(0)
• Ans is 15,12.
• 10 years agoHelpfull: Yes(0) No(1)
• 15,12 is the answer
• 10 years agoHelpfull: Yes(0) No(0)
• 10,10,12,15
• 10 years agoHelpfull: Yes(0) No(0)
• 15,12
  2,4,6,8,10,12
  1,3,6,10,15
  
• 10 years agoHelpfull: Yes(0) No(0)
• 15,12
  (2,4,6,8,10,12)
  (1,3,6,10,15)
• 10 years agoHelpfull: Yes(0) No(0)
• Ans = 15
  Soln -
  There are 2 series
  1st is addition of 2 i.e
  2+2=4
  4+2=6
  6+2=8
  8+2=10
  other series is addition of sequence 2,3,4, and so on starting from 1
  1+2=3
  3+3=6
  6+4=10
  10+5=15
• 10 years agoHelpfull: Yes(0) No(0)
• ans is 15,12
• 10 years agoHelpfull: Yes(0) No(0)
• Ans is 12.bcz difference btwn 2 no.s is 1,3,1,3,0,2,0,2. So ans is 12
• 10 years agoHelpfull: Yes(0) No(0)