A printing service provides copies on 6 different colors of paper, with each color available in 3 finishes. If a business orders 2 brochures printed on different paper types, how many unique combinations of brochure, color, and finish can be created?

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Correct answer marked below

306

Correct

300

180

120

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Official Explanation

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There are 6 colors of paper and 3 finishes available. For each of the 2 brochures, we can choose a color and a finish. Therefore, the total combinations are calculated as…

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Comments

pranavDec 19, 2024

Can you explain more?

AkshithSep 17, 2024

thanks for taking time to upload it!

What this question tests

What it tests

Whether you can count arrangements and selections correctly — permutations vs. combinations.

Common trap

Overcounting: treating a selection as ordered when order does not matter, or forgetting to divide by duplicates.