Question

What is the speed of boat in still water? Statement I: The boat can cover 24 km downstream distance in 4 hours. Statement II : Speed of the stream is Two-fifth the speed of boat in still water. Statement III: The boat can cover 24 km upstream distance in 8 hours.

A I and III together
B Only II
C I and II together
D I and either II or III
E Any combination of 2 statements can give the required result
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