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OpenStudy (anonymous):
John entered a cross-country ski race. The first part of the race was 14 km long, and he completed it in 1 hour. The second part was 18 km long, and he completed this part in an hour and a half. What was John's average speed for the whole race?
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OpenStudy (anonymous):
A 27.3 kilometers per hour B 12.8 kilometers per hour C 13.2 kilometers per hour
OpenStudy (anonymous):
@sajjadahmed
OpenStudy (anonymous):
can u help me
OpenStudy (acxbox22):
|dw:1395613952267:dw|
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