प्रश्न चिह्न 'के स्थान पर क्या आना चाहिए?' निम्नलिखित संख्या श्रृंखला में?

3, 7; ?, 27, -37, 63

  1. 12
  2. -18
  3. 15
  4. -9
  5. -12

Answer (Detailed Solution Below)

Option 4 : -9
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दी गई श्रृंखला नीचे दिखाए गए पैटर्न का अनुसरण करती है:

3 + 22 = 7

7 – 42 = –9

–9 + 62 = 27

27 – 82 = –37

–37 + 102 = 63

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