Select the number from among the given options that can replace the question mark (?) in the following series.
2, 31, 4, 37, 10, 41, 28, 43, 82, 47,?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 244.
Given series: 2, 31, 4, 37, 10, 41, 28, 43, 82, 47,?
1. 2, 4, 10, 28, 82, ?
2 + 2 = 4
4 + (2 × 3) = 4 + 6 = 10
10 + (6 × 3) = 10 + 18 = 28
28 + (18 × 3) = 28 + 54 = 82
82 + (54 × 3) = 82 + 162 = 244
2.31, 37, 41, 43, 47 - Prime Number Series