Multiple choice

Directions: Find the missing number in the following series. 71, 53, 73, 50, 75, ?

  1. 73

  2. 49

  3. 47

  4. 45

  5. 43
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The series follows an alternating pattern. The first sequence is 71, 73, 75 (adding 2), and the second sequence is 53, 50, 47 (subtracting 3). The missing number follows 75 in the first sequence, but the pattern requires the next term in the second sequence, which is 50 - 3 = 47.

AI explanation

This problem uses the alternating series method to find the missing term. The first progression is 71, 73, 75, showing a common difference of 2, while the second progression is 53, 50, ?. The second progression follows a pattern of subtracting 3 from each term, meaning we subtract 3 from 50 to get 47. The result is 47.

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