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Chapter 1: Q25. (page 22)

TEST SCORES Brian answered 36 items correctly on a 40-item test. What percent did he answer correctly?

Short Answer

Expert verified

The percentage of correct answers when Brian answered 36 items correct out of 40 items is 90%.

Step by step solution

01

Step 1. Given information

Brian answered 36 answers correct out of 40-item test.

02

Step 2. Definition of percentage.

A percentage is a ratio that can be expressed as a fraction of 100.

03

Step 3. Assumptions and apply the definition of percentage.

Let x percent of answers be correct.

According to the question, the number of correct answers divided by the total number of questions multiplied by 100 gives the desired result,

36×10040=x

04

Step 4. Calculations.

36×10040=x9×10=x90=x

Hence, the percentage of correct answers when Brian answered 36 items correct out of 40 items is 90%.

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