Chapter 7, Problem 3CST

To determine

To select:The correct answer from the given choices.

Answer to Problem 3CST

  $\text{40\% of 140 is 56}.$

Option A.

  $40\%$ is correct answer.

Explanation of Solution

Given information:

The information given in the question:

  $\text{ percent of 140 is 56}$

The options given for the answer:

A. $40\%$ B. $56\%$ C. $84\%$ D. $250\%$

As per the problem,

  $\text{ percent of 140 is 56}$

Write the proportion

  $\frac{a}{b}=\frac{p}{100}$

Substitute $\text{56 for }a\text{ and 140 for }b$ ,

  $\frac{56}{140}=\frac{p}{100}$

Multiply each side by $100$

  $100\cdot \frac{56}{140}=\frac{p}{100}\cdot 100$

Simplify,

  $p\text{=40}$ .

That is,

  $\text{40\% of 140 is 56}.$

Hence,

Option A.

  $40\%$ is correct answer.