University of North Dakota Grades 9/10
January 12, 2026
School Team Name
Calculators are allowed. Student Name
Roxanna has a collection of silver spoons from all over the world. She finds that she can arrange her spoons in sets of 7 with 6 left over, sets of 8 with 1 left over, or sets of 15 with 3 left over. If Roxanna has fewer than 220 spoons, how many are there?
(2 pts) 1.
If any two points determine a line, how many lines are determined by seven points in a plane, no three of which are collinear?
(3 pts) 2.
A hockey team played 5 games with an average of 3 goals per game. How many goals do they need to score in their 6th game to increase their average to 4 goals per game?
(3 pts) 3.
Two circular dials are positioned next to each other, and an arrow is drawn on each dial, as shown
The left dial rotates counterclockwise at 20∘ per second and the right dial rotates clockwise at 8∘ per second. What is the minimum number of seconds that must pass before the arrows are pointing directly towards each other again?
(3 pts) 4.
Two cylinders are standing on a flat table. Cylinder A has radius 2 and height 8. Cylinder B has radius 8 and height 2. Cylinder A is full of water and Cylinder B is empty. If all of the water from Cylinder A is then poured into Cylinder B what fraction of Cylinder B is full of water? (The volume of a cylinder with radius and height is )
(3 pts) 5.
Given that , , and are natural numbers and and . What is the smallest possible value of ?
(3 pts) 6.
Matthew reads 3 more pages each day than the previous day. If he reads 6 pages on the first day, how many days will it take him to finish a 510-page book?
(3 pts) 7.
TOTAL POINTS
