mathcounts problem 67

Mathematics
Tutor: None Selected Time limit: 1 Day

Jack Frost makes 18 snowballs every hour, but 2 snowballs melt each 15 minutes. How many hours will it take Jack to accumulate 2 dozen snowballs? Express your answer as a decimal to the nearest tenth.

Jan 1st, 2015

18/1  -8/1  18-8=10 hours 

=2.4 hours is your answer

Jan 1st, 2015

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