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- A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours.
Question 1:
A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. The speed of the stream is? A. 7 km/h
B. 5 km/h
C. 3 km/h
D. 2(1/2)km /h
Feedback 100 --- 10 DS = 10
? ---- 1
75 ---- 15 US = 5
? ----- 1 S = (10 - 5)/2
= 2 ½ kmph
? ---- 1
75 ---- 15 US = 5
? ----- 1 S = (10 - 5)/2
= 2 ½ kmph
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