# Mock AIME 5 Pre 2005 Problems

## Contents

## Problem 1

Function is given such way that for all ,

If where and are relatively prime integers, computer .

## Problem 2

Two 5-digit numbers are called "responsible" if they are:

If two "responsible" numbers are small as possible, what is the sum of the three middle digits of and last two digits on the ? That is, .

## Problem 3

A triangle is called *Heronian* if its perimeter equals the area of the triangle. *Heronian* triangle has sides and . If the distance from its incenter to the circumcenter is exprssed as where is not divisible by squares of any prime, find the remainder when is divided by .

## Problem 4

Eight boxes are numbered to . The number of ways you can put 16 identical balls into the boxes such that none of them is empty is expressed as , where . What is the remainder when is divided by ?

## Problem 5

There are three rooms in Phil's Motel. One room for one person, one room for three people, and another one room for four people. Let's say Peter and his seven friends came to the Phil's Motel. How many ways are there to house Peter and his seven friends in these rooms?

## Problem 6

Larry and his two friends toss a die four times. From all possible outcomes, the probability that outcome has at least one occurrence of 2 is where and are relatively prime integers. Find .

## Problem 7

In , X is on , dividing . Y is on , dividing . V is on , dividing . It is found that ray VT intersects at Z. Find

## Problem 8

Let and that:

If with , then what is ?

## Problem 9

On a circle with center , two points, and are on a circle and is outside the circle but in ray XY. and . If where and are relatively prime integers, and such that , find

## Problem 10

Given that:

Then what is the smallest integer that is divisible and ?

## Problem 11

There are number of ways to represent 10000000 as product of three factors and number of ways to represent 11390625 as product of three factors. If , find .

## Problem 12

Let . Find the sum of digits of .

## Problem 13

If the reciprocal of sum of real roots of the following equation can be written in form of where , find .

## Problem 14

The set contains complex numbers such that .

is defined this way:

If and 2008th number of the set is in form of (), find .

## Problem 15

Call the value of as . Let the value of as . Find the absolute value of .