Question

For one Algebra test, Mary had to answer 15 questions. Of these questions, Mary answered 20% of them correctly. How many questions did Mary correctly answer on her test? Round your answer to the nearest whole number if necessary.

Answer 1

Answer:

Mary correctly answered 3 questions on her test.

Step-by-step explanation:

Given:

For one Algebra test, Mary had to answer 15 questions.

Mary answered 20% of them correctly.

Now, to find the questions Mary correctly answered on her test.

Total number of questions for algebra test Mary had to answer = 15.

Mary answered correctly = 20%.

Now, to get the number of questions Mary answered correctly:

$20\%\ of\ 15\\\\=\frac{20}{100} \times 15\\\\=0.20\times 15\\\\=3.$

Therefore, Mary correctly answered 3 questions on her test.