Question:
Rendy skated 1 hour 15 minutes each day for 5 days and 1 hour 30 minutes each day for 3 days. How long would he have to skate the ninth day in order to average 85 minutes of skating each day for the entire time?
(Note : Statistic)
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3. Mathematic Quiz 17 is closed on February 28, 2011.
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Mathematic Quiz 16
Answer : 7
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Winner s: Yusuf Setya Prabowo (XII IPA 1) and Arum Karomatal Mazidah (XII IPA 2)
