Problem of the Week #18: February 11th 2008
Remember to submit your solutions by Friday, February 15th to tubbsjac@nbed.nb.ca

Grade 6 Problem:
McDonalds’ Restaurants sells Chicken McNuggets in boxes of 6, 9, or 20. What combination of boxes would you buy to have exactly 53 McNuggets?


Grade 7 Problem:
Goldblach’s Conjecture states that any even number greater than 4 can be written as the sum of two prime numbers (example: 8 = 5 + 3 or 7 + 1). Find four different ways to write 42 as the sum of two prime numbers.


Grade 8 Problem:
Which is more 30% of 40% of $50 or 40% of 30% of $50?

Grade 9 Problem
There are a number of coins on a table. One quarter of the coins show heads. If two of the coins are turned over, then one third of the coins show heads.
How many coins are on the table?
Does it matter if you turn over coins that show heads, coins that show tails, or one of each?

Grade 10 Problem
I used my calculator to divide two whole numbers that are both less than 100.
The solution on the calculator was: 0.739726074
What numbers did I use to get that solution?