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 dont 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 - Juan races his bicycle for 196ft a wheel of his bicycle turns 28 times as...
- Math - A bicycle wheel is 30 inches in diameter. a. To the nearest revolution,...
- algebra - Justin races his bicycle for 90M . A wheel of his bicycle turns 45 ...
- physics - Omar races his bicycle for 152m. A wheel of his bicycle turns 38times ...
- Precalc - 1. If a bicycle wheel has a diameter of 27 inches, find the radian ...
- Precalc - 1. If a bicycle wheel has a diameter of 27 inches, find the radian ...
- Physics - Question related to a bicycle dynamo and a wheel. Why a current flows ...

More Related Questions