Correct Answer - Option 4 : 87
Given:
The number series:
12, 13, 28, ?, 352, 1765
Concept Used:
Number series following a fixed pattern.
Calculation;
The given number series follows the pattern:
12 × 1 + 1 = 13
13 × 2 + 2 = 28
28 × 3 + 3 = 87
87 × 4 + 4 = 352
352 × 5 + 5 = 1765
∴ The number in place of “?” in the given number series is 87