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Percents greater than 100 and decimal percents

  • ATI TEAS
  • Math: Numbers and Algebra
  • Numeric answer
  • Difficulty 2 of 5

Question

A batch of homemade trail mix weighs 640 grams, and raisins make up 12.5% of the batch's weight. How many grams of raisins are in the batch?

80

Typed answer, rounded to a whole number.

Answer

80

Rationale

A percent that contains a decimal, such as 12.5%, is handled like any other percent: divide by 100 to get its decimal form, then multiply by the 640-gram total. The raisins are only part of the batch, so the answer must be less than 640.

Worked solution: 12.5% of 640 = 12.5 ÷ 100 × 640 = 80.

RememberDecimal percents work the same way: divide by 100, then multiply by the whole.

Sources

Sources marked “Adapted from” are licensed under CC BY 4.0. We changed the material: its facts are rewritten into an original question, answer options and rationale. The original authors and publishers do not endorse SwipeExam.

  • DOE-HDBK-1014/1-92 U.S. Department of Energy · License: US government work (public domain) · Retrieved · Page 76
  • Guide for the National Institute of Standards and Technology · License: US government work (public domain) · Retrieved · Page 32
  • Lesson 3: Measures of Risk (Source: CDC) Centers for Disease Control and Prevention (CDC) · License: CDC content (credit required) · Retrieved · Properties and uses of proportions
  • Adapted from Open RN Nursing Skills, 2nd edition: Chapter 5 Math Calculations Open RN (Chippewa Valley Technical College) · License: CC BY 4.0 · Retrieved · EQUIVALENCIES › Other Measurements; ROUNDING · 2nd edition, 2023

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