Multiple choice

Directions: Find the missing number in the following series. 54, 51, 48, 45, 42, ?

  1. 38

  2. 36

  3. 40

  4. 39
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D Correct answer
Explanation

The series decreases by 3 at each step: 54-3=51, 51-3=48, 48-3=45, 45-3=42. Following this pattern, 42-3=39.

AI explanation

The given sequence is formed by subtracting 3 from each previous term, which makes it a simple arithmetic progression. For instance, 54 minus 3 equals 51, and 51 minus 3 equals 48. Continuing this pattern, 42 minus 3 yields 39. The missing number is 39.

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