If \(M5_{ten} = 1001011_{two}\) find the value of M

  • A 5
  • B 6
  • C 7
  • D 8
waec 2002mathematics

The correct answer is C. 7

\(M5_{ten} = 1001011_{two}\\

=1 \times 2^6 + 0\times 2^5 + 0\times 2^4 + 1\times 2^3 + 0\times 2^2 + 1\times 2^1 \\

=64+8+2+1=75_{ten}\\

∴ m = 7 \)

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