Multiple choice

Find the missing term in the following series. 56, 42, 30, 20, 12, ?

  1. 10

  2. 8

  3. 6

  4. 5

  5. 3
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C Correct answer
Explanation

The series follows a pattern of decreasing differences: 56-42=14, 42-30=12, 30-20=10, 20-12=8. The next difference must be 6, so 12-6=6.

AI explanation

The differences between consecutive terms decrease by 2 each time. We subtract 14 to get 42, subtract 12 to get 30, subtract 10 to get 20, and subtract 8 to get 12. Applying the difference method, the next step is to subtract 6, which gives 6.

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