Question

2,3,12,37,86,166,288 find the wrong number

Answer 1

See the attached file
=2
2 +1^2 = 3
3 + 3^2 = 12
12 + 5^2 =37
37 + 7^2 = 86
86 +9^2 = 167
167 + 11^2 =128

166 is odd one out

Answer 2

Answer : Wrong number = 166

Step-by-step explanation:

Given :

2,3,12,37,86,166,288 find the wrong number.

To find :

Wrong number.

First, find out how the sequence is formed -

Sequence = 2,3,12,37,86,166,288

$2 + {1}^{2} = 2 + 1 = 3$

$3 + {3}^{2} = 3 + 9 = 12$

$12 + {5}^{2} = 12 + 25 = 37$

$37 + {7}^{2} = 37 + 49 = 86$

$86 + {9}^{2} = 86 + 81 = 167$

$167 + {11}^{2} = 167 + 121 = 288$

By observing, we can see that we add an odd square number to the before number in the given sequence.

Hence, 166 is wrong number.