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BITSAT2014MathematicsBasics of MathematicsActual

2^ 3 n -7 n-1 is divisible by

Options

  1. A64
  2. B36
  3. C49
  4. D25

Correct answer

C. 49

Step-by-step solution

2^ 3 n -7 n-1 Taking n=2 ; array l 2⁶-7 2-1 =64-15=49 array Therefore this is divisible by 49 .

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