West Bengal Police Constable Special Mock Test
Mathematics - Boats and Streams
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1) A man can row 8 km/hr in still water. If the speed of the current is 2 km/hr, find the time taken by the man to row 12 km downstream?
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2) A man can row 6 km/hr in still water. If the speed of the current is 1.5 km/hr, find the time taken by the man to row 18 km downstream?
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3) A boat can travel downstream at 24 km/hr and upstream at 14 km/hr find the speed of boat in still water?
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4) A man can row 12 km/hr in still water. If the speed of the current is 3 km/hr, find the time taken by the man to row 24 km downstream?
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5) A man can row 10 km/hr in still water. If the speed of the current is 2 km/hr, find the time taken by the man to row 20 km upstream?
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6) A man can row 10 km/hr in still water. If the speed of the current is 2 km/hr, find the time taken by the man to row 20 km downstream?
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7) A man can row 12 km/hr in still water. If the speed of the current is 3 km/hr, find the time taken by the man to row 36 km upstream?
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8) Which of the following best explains the cause of jet streams?
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9) A boat can travel downstream at 30 km/hr and upstream at 20 km/hr find the speed of boat in still water?
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10) A boat can travel downstream at 21 km/hr and upstream at 12 km/hr. Find the speed of the boat in still water?
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