Convert 101101two to a number in base ten

  • A 61
  • B 46
  • C 45
  • D 44
waec 2005mathematics

The correct answer is C. 45

1011012 = 1 x 25 + 0 x 24 + 1 x 23 + 1 x 22 + 0 x 21 + 1 x 20 = 32 + 0 + 8 + 4 + 0 + 1 = 4510

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