GMAT Problem Solving
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Source: GWD
Level: 4
A three-digit code for certain logs uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 according to the following constraints. The first digit cannot be 0 or 1, the second digit must be 0 or 1, and the second and third digits cannot both be 0 in the same code. How many different codes are possible?
- A 144
- B 152
- C 160
- D 168
- E 176