Question

Each question contains two statements, I and
II. Determine whether the information given in the statements is sufficient to answer the question. A boat travels downstream and upstream in a river. What is the speed of the boat in still water? Statement I: The boat covers 72 km downstream in 4 hours. Statement II: The speed of the stream is 3 km/h.

A Statement I alone is sufficient, but Statement II alone is not sufficient.
B Statement II alone is sufficient, but Statement I alone is not sufficient.
C Either Statement I or Statement II alone is sufficient.
D Both statements together are required to answer the question.
E Even both statements together are not sufficient.
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