Multiple choice

Find the missing term of the given series. 30, 23, 17, 12, ___, 5

  1. 6

  2. 7

  3. 8

  4. 9
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C Correct answer
Explanation

The differences are: 30-23=7, 23-17=6, 17-12=5, 12-x=4, x-5=3. So 12-4 = 8.

AI explanation

The differences between the consecutive terms are decreasing by one each time. The subtrahends are 7, 6, 5, 4, and 3. Subtracting 4 from 12 gives 8, and subtracting 3 from 8 results in 5.

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