# Difference between revisions of "2005 AMC 12B Problems/Problem 1"

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== Solution == | == Solution == | ||

− | < | + | <cmath> |

− | + | \begin{align*} | |

− | + | \mbox{Cash out} &= 1000 \cdot \frac25 = 400 \\ | |

− | + | \mbox{Cash in} &= 1000 \cdot \frac12 = 500 \\ | |

− | + | \mbox{Profit} &= \mbox{Cash out} - \mbox{Cash in} = 500-400 = \boxed{100}. | |

+ | \end{align*} | ||

+ | </cmath> | ||

== See also == | == See also == | ||

* [[2005 AMC 12B Problems]] | * [[2005 AMC 12B Problems]] |

## Revision as of 22:06, 17 April 2009

## Problem

A scout troop buys candy bars at a price of five for dollars. They sell all the candy bars at the price of two for dollar. What was their profit, in dollars?

## Solution