Multiple choice

Directions: In the following question, a series is given, with one term missing. Choose the correct alternative from the given ones. 17, 43, 81, 131, ?

  1. 183

  2. 193

  3. 153

  4. 173
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The differences between consecutive terms are: 43-17=26, 81-43=38, 131-81=50. The differences increase by 12 each time (26, 38, 50). The next difference should be 50+12=62. 131+62=193.

AI explanation

The pattern is found by looking at the differences between consecutive terms: 43 - 17 = 26, 81 - 43 = 38, and 131 - 81 = 50. The differences themselves form an arithmetic progression increasing by 12 each time (26 + 12 = 38, 38 + 12 = 50). Therefore, the next difference is 50 + 12 = 62, and the missing term is 131 + 62 = 193.

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