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Question
12
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A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?
1. 2:01 2. 3:02 3. 8:03 4. Cannot be determined
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Question
13
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A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:
1. 4 2. 5 3. 6 4. 10
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