<PRE><B>Question 809411</B>
s = d / t
s + c = 54/3
s - c = 60/6 = 10
s = 10 + c
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s + c = 54/3
10 + c + c = 54/3
2c = 54/3 - 30/3
2c = 24/3 = 8
Answer:
c = 4 kph
s = 14 kph
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