Question

Janey answered 60% of the 30 questions on an online physics quiz correctly. How many problems on the quiz did she answer correctly?

Answer 1

18 answered correctly

Explanation:

30/100×60

=18

Answer 2

Answer: 18 problems answered correctly

Explanation:

We can use the decimal multiplier method to find the number of problems Janey answered correctly, we need to first convert the percentage to a decimal:

60% = 0.6

To find the number of problems Janey answered correctly, we can multiply the decimal by the total number of questions:

0.6 × 30 = 18

Therefore, Janey answered 18 problems correctly on the quiz.

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Summary

1. Convert the percentage to a decimal by dividing by 100.
2. Multiply the decimal by the total number of items to find the number of items that meets the percentage of the whole, in this case, the percentage was 60% and the whole was 30.