Arithmetic, Distance and Speed Problems, Fractions and Ratios, Geometry, Roots, Work and Rates Problems

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swerve: Legendary Member; Posts: 2545; Joined: Sun Oct 29, 2017 2:04 pmFollowed by: 6 members

by swerve » Tue Nov 18, 2025 5:43 pm

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A $100$ meter wide river can be crossed straightly, in $4$ minutes when there is no stream and $5$ minutes when there is stream. What is the speed of the stream?

A. $10$ meter/minute
B. $15$ meter/minute
C. $20$ meter/minute
D. $5$ meter/minute
E. None

The OA is B

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Source: Beat The GMAT — Problem Solving | Tue Nov 18, 2025 5:43 pm

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