APPSC Group-I Prelims 2019 Paper II · Question 36

Question 36 of the APPSC Group-I Prelims 2019 Paper II (26 May 2019). Try it first, then open the answer and explanation.

1. Prelims 2019 · P-II · Q36 · Mental Ability & Reasoning · Numbers & Series

   Identify the wrong number in the following series. 3, 27, 75, 150, 243, 363

   క్రింది సంఖ్యల వరుసలో తప్పైన దాన్ని గుర్తించండి 3, 27, 75, 150, 243, 363

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   Answer: 150

   సమాధానం: 150

   The terms follow 3 × 1², 3 × 3², 3 × 5², 3 × 7², 3 × 9², 3 × 11², i.e. 3, 27, 75, 147, 243, 363. So 150 is wrong; it should be 147.

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