AQuA-RAT train #55658 · Number Theory · Digits
A three-digit code for certain locks uses the digits 0, 1, 2…
A three-digit code for certain locks uses the digits 0, 1, 2, 3, 4, 5, 6 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?
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #55658
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