Wednesday, May 10, 2017
(in North America and South America)
Thursday, May 11, 2017
(outside of North American and South America)
©2016 University of Waterloo
Time: 1 hour
Calculating devices are allowed, provided that they do not have any of the following features: (i) internet access, (ii) the ability to communicate with other devices, (iii) information previously stored by students (such as formulas, programs, notes, etc.), (iv) a computer algebra system, (v) dynamic geometry software.
Michael has $280 in $20 bills. How many $20 bills does he have?
The value of \(4^{2}-2^{3}\) is
A pentagon is divided into 5 equal sections, as shown.
An arrow is attached to the centre of the pentagon. The arrow is spun once. What is the probability that the arrow stops in the section numbered 4?
There are 160 students in grade 8 at Murray Public School. If exactly 10% of these students are on the school’s chess team, how many grade 8 students are on the team?
\(44\times 22\) is equal to
If the perimeter of the triangle shown is 21, what is the value of \(x\)?
Students were surveyed about their favourite colour and the results are displayed in the graph shown.
What is the ratio of the number of students who chose pink to the number of students who chose blue?
When a number is tripled and then decreased by 6, the result is 15. The number is
Tian measured her steps and found that it took her 625 steps to walk 500 m. If she walks 10 000 steps at this same rate, what distance will she walk?
Line segments \(PQ\) and \(RS\) intersect at \(T\), as shown.
If \(TS=TQ\) and \(\angle PTR=88\degree\), the value of \(x\) is
The volume of the rectangular prism shown is \(60 \text{ cm}^3\).
What is the value of \(x\)?
In the diagram shown, David begins at \(A\) and walks in a straight line to \(C\), and then walks in a straight line from \(C\) to \(B\). Cindy also begins at \(A\) and walks in a straight line to \(B\).
How much farther does David walk than Cindy?
The sum of the first 100 positive integers (that is, \(1+2+3+\cdots+99+100\)) equals 5050. The sum of the first 100 positive multiples of 10 (that is, \(10+20+30+\cdots+990+1000\)) equals
There are 20 pens to be given away to 4 students. Each student receives a different number of pens and each student receives at least one pen. What is the largest number of pens that a student can receive?
The number of even integers between 1 and 103 is the same as the number of odd integers between 4 and
In the diagram, \(\triangle PQR\) is equilateral and has side length 6 cm.
Each of the shaded triangles is equilateral and has side length 2 cm. What fraction of the area of \(\triangle PQR\) is shaded?
On coach Wooden’s basketball team:
When used with the information above, which of the following single statements is enough to determine Avery’s height?
Brodie and Ryan are driving directly towards each other. Brodie is driving at a constant speed of 50 km/h. Ryan is driving at a constant speed of 40 km/h. If they are 120 km apart, how long will it take before they meet?
In a group of seven friends, the mean (average) age of three of the friends is 12 years and 3 months and the mean age of the remaining four friends is 13 years and 5 months. In months, the mean age of all seven friends is
In the six-digit number \(1ABCDE\), each letter represents a digit. Given that \(1ABCDE \times 3 = ABCDE1\), the value of \(A+B+C+D+E\) is
The number of dots on opposite faces of a regular die add to 7. Four regular dice are arranged as shown.
Which of the following could be the sum of the number of dots hidden between the dice?
The values \(2,3,4,\) and 5 are each assigned to exactly one of the letters \(V, W, X\), and \(Y\) to give \(Y^{X} -W^{V}\) the greatest possible value. The value of \(X + V\) is equal to
Mike and Alain play a game in which each player is equally likely to win. The first player to win three games becomes the champion, and no further games are played. If Mike has won the first game, what is the probability that Mike becomes the champion?
In the diagram, \(ABC\) is a quarter of a circle with radius 8. A semi-circle with diameter \(AB\) is drawn, as shown. A second semi-circle with diameter \(BC\) is also drawn.
The area of the shaded region is closest to
Brady is stacking 600 plates in a single stack. Each plate is coloured black, gold or red. Any black plates are always stacked below any gold plates, which are always stacked below any red plates. The total number of black plates is always a multiple of two, the total number of gold plates is always a multiple of three, and the total number of red plates is always a multiple of six. For example, the plates could be stacked with:
In how many different ways could Brady stack the plates?