1. If 6412 ÷ 415 = 64?, then what will come in place of question mark(?)?

  • Option : C
  • Explanation : (C) 6412 ÷ 415 = 64?
    ⇒ (26)12 ÷ (22)15 = (26)?

    ⇒ (2)42 = (2)6 × ?
    Comparing the power of both side,
    42 = 6 × ? ⇒ ? = 7

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