Find the next number in the series.

2,6,12,19,...?

a) 30

b) 27

c) 29

d) none of the above

on
26-Apr-2016 23:25

If it is 20 instead of 19, the answer is 30. 1^2 + 1 = 2, 2^2 + 2 = 6, 3^2+3 = 12, 4^2 + 4 = 20, 5^2 + 5 = 30

If it is 20 instead of 19, the answer is 30. 1^2 + 1 = 2, 2^2 + 2 = 6, 3^2+3 = 12, 4^2 + 4 = 20, 5^2 + 5 = 30

on
27-Apr-2016 22:16

yes if it is 20 then answer explained by Karthik is right. or we can do 2+4=6, 6+6=12, 12+8=20, 20+10=30 +4,+6,+8,+10

yes if it is 20 then answer explained by Karthik is right. or we can do 2+4=6, 6+6=12, 12+8=20, 20+10=30 +4,+6,+8,+10