1. Math Olympiad 79

2. Question 1
4 minutes
A freight train travels 1 mile in 1 minute 30 seconds. At this rate, how many miles will the train travel in 1 hour?
Answer:40 miles

3. Question 2
5 minutes
A person has four special coins whose values in cents are shown below. How many different amounts can the person make using one or more of the coins? 3 1 5 10
Answer:15

4. Question 3
5 minutes
If I add 5 to 1/3 of a number, the result is ½ of the number. What is the number?
Answer: 30

5. Question 4
6 minutes
The length of AE is 20 cm. B is the midpoint of AC, C is the midpoint of BD, and D is the midpoint of BE. What is the length of DE in cm? A B C D E 20
Answer: 8 cm

6. What simple fraction is equal to the complex fraction shown below?
Question 5
6 minutes
What simple fraction is equal to the complex fraction shown below?
Answer: