College Algebra CLEP Prep Practice Exam

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What is the sum of two positive 3-digit numbers?

  1. Twenty

  2. Five thousand

  3. Six thousand

  4. Nine hundred

The correct answer is: Six thousand

Context Positive 3-digit numbers are numbers that range from 100 to 999. Option A (Twenty) and Option B (Five thousand) are incorrect because they do not fall within the range of positive 3-digit numbers. Option D (Nine hundred) is also incorrect because the sum of two 3-digit numbers cannot be a single 3 digit number. Option C (Six thousand) is the correct answer as the sum of two 3-digit numbers can range from 200 (100 + 100) to 1998 (999 +999), both of which are 4-digit numbers starting with a 1. Additionally, all other combinations of two 3-digit numbers will have a sum that results in a 4-digit number. Therefore, the only possible 3-digit sum is 1000, making Option C the correct answer.

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