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      Question

      56 ÷ 14 × 4 – 316 + ? 2 = 100

      What will come in the place of (?) mark in following questions?
      A 40 Correct Answer Incorrect Answer
      B 20 Correct Answer Incorrect Answer
      C 30 Correct Answer Incorrect Answer
      D 50 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      56 ÷ 14 × 4 – 316 + ? 2   = 100 ⇒ 4 × 4 – 316 + ?2 = 100 ⇒ 16 – 316 + ?2 = 100 ⇒ ?2 = 100 + 316 – 16 ⇒ ?2 = 416 – 16 ⇒ ?2 = 400 ⇒ ? = 20 ∴ The value of ? is 20

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