428,877 views
41 votes
41 votes
1. Mrs. Grape has 90 students. On her last test, 3/10 of these students earned an A. Of those students, 1/9 got a perfect score. How many students got a perfect score?

2. Using the information from the problem above, what fraction of the total students got a perfect score on the test?

User Roman Pavelka
by
2.9k points

2 Answers

22 votes
22 votes

Answer:

3 1/30

Step-by-step explanation:

90 * 3/10 got A

of these 1/9 = perfect

90 * 3/10 * 1/ 9 = 3

3 out of 90 = 3/90 = 1/30

User Bharat Kumar Emani
by
2.7k points
22 votes
22 votes

Answer: 1/30

Explanation:

3/10 of 90 = 27

1/9 of 27 = 3

3/90 = 1/30

User Javier
by
2.8k points
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