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Find the sum of all 3-digit numbers that can be formed using the digits 1, 3 and 5, each used exactly once.

Competition practicePermutations & Combinations
  • A999
  • B1998
  • C2664
  • D1554

Step-by-Step Solution

6 numbers; each digit appears twice in each place. Sum of a place column . Total .
Answer: B) 1998

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