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A lucky draw picks 3 different tokens from tokens numbered 1 to 30 (order ignored). In how many draws is the product of the three numbers divisible by 3?

Competition practicePermutations & Combinations
  • A2920
  • B4060
  • C1140
  • D2900

Step-by-Step Solution

All choices: . Product NOT a multiple of 3 means all three come from the 20 non-multiples of 3: . So .
Answer: A) 2920

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