93.4k views
0 votes
If Wendy answered 18 questions correctly and obtained 90%, how many questions were on the test?

1 Answer

6 votes

Final answer:

To find the number of questions on the test, set up a proportion using the given information: 18/x = 90/100. Simplify the equation and solve for x to find that there were 20 questions on the test.

Step-by-step explanation:

To find the number of questions on the test, we can set up a proportion using the given information. Let x represent the total number of questions on the test.

Since Wendy answered 18 questions correctly and obtained 90%, we can set up the proportion:

18/x = 90/100

Cross multiplying, we get:

18 * 100 = 90 * x

Simplifying, we find:

1800 = 90x

Dividing both sides by 90, we get:

x = 20

Therefore, there were 20 questions on the test.

User Qrdl
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.