- Thread starter
- #1

#### karush

##### Well-known member

- Jan 31, 2012

- 2,752

$\displaystyle\frac{200\text{ rev}}{\text{min}}$

How fast is the bicycle traveling in

$\displaystyle\frac{\text{mi}}{\text{hr}}$

well my try on this is.

$

\displaystyle 26\pi\text{ in }

\cdot

\frac{200\text{ rev}}{\text {min}}

\cdot

\frac{\text {ft}}{12\text{ in}}

\cdot

\frac{\text {mi}}{5280\text{ ft}}

\cdot

\frac{60\text { min}}{\text{ hr}}

\approx\frac{15.5\text { mi}}{\text{ hr}}

$

no answer given so hope this is it..

assume "rev" not a unit measure but doesn't cancel out so its not carried thru..