**Home »Aptitude Formulas» Boat and Streams Important Formulas**

**Boat and Streams Important Formulas**:

**1. Downstream/Upstream:**

In water, the direction along the stream is called downstream. And, the direction against the stream is called upstream.

2. If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then:

3. If the speed downstream is a km/hr and the speed upstream is b km/hr, then:

**Read more:**

Stocks and Shares Important formulas

Time and Work Important formulas