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36 votes
36 votes
How many 3-digit numbers can you write using only digits 1, 5, and 7 if you cannot use the same digit twice?

User PraveenVenu
by
2.7k points

1 Answer

9 votes
9 votes

Answer:

6 numbers

Explanation:

157

517

751

571

715

175

User Askaroni
by
2.8k points