Question

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?

Answer 1

There are thirty questions on the test.

Explanation:

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

Answer 2

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.