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David can complete 4 math problems in 15 minutes. He has 20 math problems to do. How long will it take him to finish his test?

David can complete 4 math problems in 15 minutes. He has 20 math problems to do. How long will it take him to finish his test?
asked 18.8k views
0 votes
David can complete 4 math problems in 15 minutes. He has 20 math problems to do. How long will it take him to finish his test?

asked
User Alexey Blinov
by
7.9k points

1 Answer

3 votes

Answer:

75 min or 1 hour and 15 min

Explanation:

15/4

=3.75

3.75*20

=75

answered
User Tim Kamm
by
8.7k points
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