Question
Which of the following statement is correct? I.
A boat can travel 30 km downstream in 6 hours. If it can travel 40km upstream in 10 hours, then speed of stream is 1 km/hr. II. Length of a train is 1200 metre. If it can cross a 1500 metre long platform in 120 seconds, then speed of train is 90 km/hr.Solution
The correct answer is A
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