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      Question

      What will come in the

      place of question mark (?) in the given expression? 7 Γ— √225 + √? Γ— 3 = 156
      A 64 Correct Answer Incorrect Answer
      B 81 Correct Answer Incorrect Answer
      C 144 Correct Answer Incorrect Answer
      D 121 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      7 Γ— √225 + √? Γ— 3 = 156

      7 Γ— 15 + √? Γ— 3 = 156

      105 + √? Γ— 3 = 156

      √? Γ— 3 = 51

      √? = 17

      ? = 289

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