34.3k views
15 votes
While completing a DLA test virtually, Deidra answered 8 out 30 questions incorrectly. If the ratio remains constant, how many questions should Deidra answer correctly out of 45 questions?

User Tapash
by
6.4k points

2 Answers

6 votes

Answer:

I wnat to say its 19

Explanation:

User Sibin Grasic
by
6.1k points
4 votes
Deidra should get 33 questions correct and 12 questions incorrect if she completes a tests with 45 questions.

If the ratio of incorrect questions to total questions is 8:30, that can be simplified down to 4:15.

There are 3 15's in 45 so you need to multiply 4 by 3 to get 12 incorrect answers.

To work out the amount of correct answers, you need to take the incorrect answers away from the total questions.
User Derek Stutsman
by
6.4k points
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