Find out odd one in the given series :
10, 30, 68, 130, 220, 350
Answer & explanation
Correct answer: option 3
The logic follows here is :
23 + 2 = 10
33 + 3 = 30
43 + 4 = 68
53 + 5 = 130
63 + 6 = 222 not 220
73 + 7 = 350
The correct answer is option (3) : 220