Problem of the Week: September 4 to September 14, 2007

e-mail solutions to: tubbsjac@nbed.nb.ca

A Problem will be posted for each grade level: Grade 6 to Grade 10.
Students may submit a solution to their grade level problem or a problem above their grade level.
Solutions will be posted on Friday afternoon for the week's problem.
All solutions must be submitted before the solutions are posted.
The names of Students with correct solutions will be entered in the district prize drawing.

Grade 6 Problem: Does it add up?

Place addition signs in the number 987654321 so that it adds to make 99 for a total.
Your answer must show where the signs are placed and must contain the correct number of signs. Remember, only addition signs may be used.

Grade 7 Problem:

The Grand Manan Ferry is loading trucks and cars. All the trucks have the same mass and all the cars have the same mass. Three trucks and two cars have a mass of 32 tonnes. Four trucks and three cars have a mass of 44 tonnes. What is the mass of two trucks and one car?

Grade 8 Problem:

A family is going to buy a new car. The list price of the car is $18 600 plus 14% tax. The dealer says he will sell them the car for $21 000 cash sale or $2 500 down and $400 per month for 48 months. How much does the car cost if purchased on the installment plan?

Grade 9 Problem:

You are given two digit number that is seven times the sum of its digits? After you reverse the digits of the number, you notice that the new number is W times greater than the sum of its digits. Believe it or not, this will occur for all two-digit numbers that are seven times the sum of its digits?
Your task is to determine the value of W?

Grade 10 Problem:
On a very hot day, you decide to go to your favorite Ice Cream Parlor for an ice cream cone. Since it is especially hot, you decide to order a two-scoop cone. There are 14 different flavors of ice cream: vanilla, chocolate, rocky road, mint chocolate chip, strawberry, pralines and cream, bubble gum, butter pecan, mud pie, peanut butter crunch, almond fudge, coffee, chocolate chip, and banana royale. You have a choice of three different types of cones: plain, sugar, and waffle. How many different types of two-scoop ice cream cones can you order?

Problem of the Week

Math problem of the week will begin in September