There were 30 questions on a math test. Chaz got 80% of them correct. How many questions did he answer correctly?
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24
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18
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15
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12
To find the number of correct questions, calculate 80% of 30: 0.80 * 30 = 24. The other options represent different percentages (e.g., 60% would be 18).
To find out how many questions Chaz answered correctly, we need to calculate 80% of the total number of questions on the test.
We can do this by multiplying the total number of questions (30) by the percentage (80%) and then dividing by 100:
[ \text{Number of questions answered correctly} = \frac{80}{100} \times 30 ]
Simplifying the expression:
[ \text{Number of questions answered correctly} = \frac{4}{5} \times 30 ]
[ \text{Number of questions answered correctly} = \frac{4 \times 30}{5} ]
[ \text{Number of questions answered correctly} = \frac{120}{5} ]
[ \text{Number of questions answered correctly} = 24 ]
Therefore, Chaz answered 24 questions correctly.
The correct answer is A) 24.