Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer from amongst the four alternatives to the unsolved equation

    1 × 2 × 3 = 231
    3 × 4 × 5 = 453
    5 × 6 × 7 = ?

  • 657
  • 675
  • 756
  • 765
Some equations are solved on the basis of a certain system. On the same basis, find out the correct
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