Chapter 0.6, Problem 28E

To determine

To calculate: The number of correct answers out of 35 questions to score $75\%$ in driving education test.

Answer to Problem 28E

The number of correct answers out of 35 questions to score $75\%$ in driving education test are $27$ .

Explanation of Solution

Given information:

Kara to get her driving license need to score $75\%$ . There are 35 questions in driving education test.

Formula used:

Percent proportion is ratio of amount and base is same as percent to 100.

To convert percentage to fraction divide the number by 100.

Calculation:

It is provided that Kara to get her driving license need to score $75\%$ . There are 35 questions in driving education test.

Let x answers need to be correct.

Recall that percent proportion is ratio of amount and base is same as percent to 100.

According to the question, number of correct answers divided by total number of questions is $75\%$ ,

  $\begin{array}{c}\frac{x}{35}=\frac{75}{100}\\ x=\frac{75\times 35}{100}\\ x=26.25\end{array}$

Therefore, Kara need to answer27 answers correctly.

Thus, the number of correct answers out of 35 questions to score $75\%$ in driving education test are $27$ .