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1 vote
10. A student answers 90% of the questions

on a math exam correctly. If he answers
27 questions correctly, how many questions
are on the exam?

2 Answers

3 votes

Answer:

There are thirty questions on the test.

Explanation:

You can discover this by doing 27 divided by . 90 which equals 30

User Daniel Brughera
by
4.5k points
3 votes

9514 1404 393

Answer:

30

Explanation:

Let q represent the number of questions on the exam.

27 = 0.90q . . . . . 90% of them is 27

27/0.9 = q = 30 . . . . . divide by the coefficient of q

There are 30 questions on the exam.

User Pteehan
by
4.7k points