Mandy got 22 questions correct on her test. Her grade was 80%. How many questions were on the test.
If there were n questions, then
.80n = 22
n = 22/0.8 = ?
Oddly, the result is not an integer. Typo? Rounded score?
Mandy got 22 questions correct on her test. Her grade was 80%. How many questions are on the test?
24
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To find out how many questions were on the test, we can use the concept of proportion.
First, let's set up a proportion using the given information:
(22 correct questions) / (total questions on the test) = 0.80
To solve for the total number of questions on the test, we can cross-multiply and solve for the variable:
22 / (total questions on the test) = 0.80
Next, we can isolate the variable by multiplying both sides of the equation by the total questions on the test:
22 = 0.80 * (total questions on the test)
Divide both sides of the equation by 0.80:
22 / 0.80 = total questions on the test
This simplifies to:
27.5 = total questions on the test
Since we cannot have a fraction of a question, we can round up or down depending on the context. In this case, since the test is likely to be a whole number of questions, we can assume that the total number of questions is 28.
Therefore, there were 28 questions on the test.