TCS
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by*
S JAYASHREE
on
19-Apr-2016 15:00

Find the next number in the series.

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

a) 30

b) 27

c) 29

d) none of the above

Karthik
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

SAHAJ MAHESHWARI
on
27-Apr-2016 22:16Accepted Solution

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