A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is_________?
A. 3
B. 7.5
C. 2.25
D. 1.5
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A. 3
B. 7.5
C. 2.25
D. 1.5
A. 2 : 1
B. 3 : 1
C. 3 : 2
D. 4 : 3
A. 16 hours
B. 18 hours
C. 20 hours
D. 24 hours
A. 1.5km/hr
B. 3km/hr
C. 1km/hr
D. none
A. 2
B. 3
C. 4
D. 5
A. 1 : 2
B. 3 : 1
C. 2 : 1
D. 1 : 3
A. 40 minutes
B. 1 hour
C. 1 hr 15 min
D. 1 hr 30 min
A. 40 Minutes
B. 1 Hour
C. 1 hr 15 Min
D. 1 Hr 30 Min
A. 3 1/3 km/hr
B. 3 1/9 km/hr
C. 1 ¼ km/hr
D. 4 2/3 km/hr
A. 4km
B. 6 km
C. 8 km
D. 12 km