Question

3,1,4,2,5,4,6,? this is a series also what is the right number come after 6

Answer 1

answer is 4..

see  that 
i. 3-2=1
ii. 4-2=2
iii. 5-2=3                (here u did mistake there not 4  that 3..)
iv. 6-2=4..

soo  the answer is 4..

hope its help u.