Difficulty: Easy
Correct Answer: 132
Explanation:
Compute differences 15 − 2 = 13 = 1×13 41 − 15 = 26 = 2×13 80 − 41 = 39 = 3×13
Next step Add 4×13 = 52 to 80 → 80 + 52 = 132.
Discussion & Comments