Multiple choice

Find the missing number in the following number series- 112 120 111 ? 150 366

  1. 170

  2. 160

  3. 175

  4. 165

  5. 178
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C Correct answer
Explanation

Differences: +8, -9, +64, -25. Pattern: add cubes, subtract squares. 8 = 2³, 9 = 3², 64 = 4³, 25 = 5². Next operation should be +6³ = +216. 150 + 216 = 366 ✓. So missing number is 111 + 64 = 175.

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