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Unit 5 · Reasoning & Mental Ability HTET 2021 Level-3 (PGT)

The numbers in the following question are written according to a certain pattern row-wise or column-wise. Identify the pattern and find the missing number accordingly :

61125
8616
125?

निम्नलिखित प्रश्न में संख्याएँ किसी निश्चित पैटर्न पर पंक्तिवार अथवा स्तम्भवार लिखी हुई हैं। उस पैटर्न को पहचानिए और छूटी हुई संख्या (प्रश्नवाचक चिह्न) ज्ञात कीजिए :

61125
8616
125?

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Correct answer: B. 16

Explanation

Third number = 2 × second + first ÷ 2: 2 × 11 + 6 ÷ 2 = 25, 2 × 6 + 8 ÷ 2 = 16, so 2 × 5 + 12 ÷ 2 = 16.

तीसरी संख्या = 2 × दूसरी + पहली ÷ 2: 2×11 + 3 = 25, 2×6 + 4 = 16, अतः 2×5 + 6 = 16।

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