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A lawyer owns 4 pairs of pants, 5 dress shirts, and 6 ties. How many unique combinations can he wear?

  1. 124

  2. 90

  3. 120

  4. 144

The correct answer is: 120

To determine the number of unique combinations the lawyer can wear, you multiply the number of options available for each article of clothing he has. He owns 4 pairs of pants, 5 dress shirts, and 6 ties. For any outfit, he can choose one item from each category, leading to the following calculation: 1. **Pants**: 4 options 2. **Dress Shirts**: 5 options 3. **Ties**: 6 options The total number of unique combinations is calculated by multiplying these numbers together: Total combinations = (Number of pants) × (Number of dress shirts) × (Number of ties) Total combinations = 4 × 5 × 6 Calculating this gives: 4 × 5 = 20 (combinations of pants and shirts) 20 × 6 = 120 (adding ties into the mix) Hence, the total number of unique combinations the lawyer can wear is 120. This corresponds to the answer provided, which is the correct choice.