Posted by **Anonymous** on Friday, October 31, 2008 at 7:50pm.

This is an SAT prep question. Senai customized her bicycle by exchanging the front wheel for a wheel that had one half the diameter of the back wheel. Now Senai rides the bicycle, how many revolution does the front wheel make for each revolution on the back wheel?

A)8

B)4

C)2

D)1/2

E)1/4

- math -
**Damon**, Friday, October 31, 2008 at 7:59pm
Diameter big wheel = D

diameter little wheel = D/2

In one revolution, the back wheel goes forward pi D

meanwhile the forward wheel also has to go forward pi D, which is 2 pi (D/2)

so the little wheel makes two revolutions for each of thew big wheel

- math -
**lilly**, Wednesday, April 9, 2014 at 4:03pm
i don't knw

## Answer This Question

## Related Questions

- Geometry - The wheel of an adult's bicycle has diameter 26 in. The wheel of a ...
- trigo - a bicycle has a front wheel with a diameter of 24cm and a back wheel ...
- trigo - the front wheel of a bicycle has a diameter of 16 in and the back wheel ...
- math - The diameter of Sheree's bicycle wheel is 0.705 m. Caculate how many ...
- Math - The diameter of a normal front wheel on a bicycle is 24" Find the ...
- math - Dana rode her bicycle 600 miles one summer before she had to replace the ...
- Math - A bicycle wheel is 30 inches in diameter. a. To the nearest revolution,...
- math - If a bicycle wheel has a diameter of 63 centimeter. During A journey the ...
- Math - The front wheel of the worlds largest bicycle has a diameter of 3.05 ...
- Math - A bicycle wheel is 30 inches in diameter. a. to the nearest revolution, ...

More Related Questions