Find the missing number in the given series: 68, 56, 46, 38, 32, ?

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• A 24
• B 26
• C 28
• D 30

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Answer: C. 28

The gaps between terms are 12, 10, 8, 6, so each gap is 2 smaller than the last. The next gap is 4, so 32 - 4 = 28.

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