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Unit 5 · Reasoning & Mental Ability HTET 2024 Level-2 (TGT)

Next term of the following number series will be :
5, 6, 9, 15, 25, ?
निम्न संख्या श्रेणी का अगला पद होगा :
5, 6, 9, 15, 25, ?

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Correct answer: C. 40

Explanation

The differences are 1, 3, 6, 10 — the triangular numbers, so the next difference is 15. Hence the next term = 25 + 15 = 40.क्रमागत अन्तर हैं 1, 3, 6, 10 — ये त्रिभुजाकार संख्याएँ हैं, अतः अगला अन्तर 15 होगा। इसलिए अगला पद = 25 + 15 = 40।

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