Boat’s downstream speed is 15 km/h; stream speed is 1.5 km/h. Find the upstream speed.

Aptitude Boats and Streams Difficulty: Easy

Choose an option

A

13.5 km/hr
B

16.5 km/hr
C

12 km/hr
D

8.25 km/hr
E

—

Answer

Correct Answer: 12 km/hr

Explanation

Solution:b = d − s = 15 − 1.5 = 13.5; upstream = b − s = 13.5 − 1.5 = 12 km/hr.

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