A Boy Wishes to Row Across a River in the Shortest

question 26

Multiple Choice

A boy wishes to row across a river in the shortest possible time. He can row at 2 m/s in still water and the river is flowing at 1 m/s. At what angle $\theta$ should he point the bow (front) of his boat?

• A) 30\(\degree\)
• B) 45\(\degree\)
• C) 60\(\degree\)
• D) 63\(\degree\)
• E) 90\(\degree\)

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Definitions:

Standard Deviation

A calculation that determines the extent of variability or dispersion in a series of values.

Normal Distribution

Normal distribution, also known as Gaussian distribution, is a continuous probability distribution that is symmetrical around the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

50th Percentile

Also known as the median, it is the value below which 50% of the data points in a data set lie.

Normal Distribution

A statistical distribution where the data forms a symmetrical bell-shaped curve, with the mean, median, and mode all equal and in the center.