University of North Dakota Grades 9/10
January 12, 2026
School Team Name
Calculators are allowed. Key Student Name
Susan has ordered a package and lives miles east and miles north of the fulfillment center. The delivery drone flies in a straight line above the buildings at miles per hour. How long will it take Susan to get her package in minutes?
(2 pts) 1. 30
A new public policy goal states that the number of high school graduates pursuing STEM careers in North Dakota must increase by students per year. If the target cohort size is students in the year , how many students must the policy cohort include in the baseline year ?
(3 pts) 2.
Let and be positive integers such that and . What is ?
(3 pts) 3.
A standard deck of 52 cards has 13 values in each of 4 different suits. I draw two cards from the deck that are both aces and do not replace back in the deck. What is the probability that the next card I draw is an ace? Give your answers as a reduced fraction.
(3 pts) 4.
Kanesha just had a birthday. Now her daughter is half as old as her and her mother is twice as old as her. The sum of all of their ages is . How old did Kanesha just turn?
(3 pts) 5.
A composite animal pen is made up of a square and an equilateral triangle that meet at exactly one vertex (see picture below). Let be the length of the side of the square, and the length of the side of the triangle is . The total perimeter of the pen is units, what is the perimeter of the triangle alone?
(3 pts) 6.
A new smoothie bar is opening, and the menu offers a fixed list of four premium add-ins: Açaí, Chia Seeds, Protein Powder, and Honey. The manager wants to feature every single combination of add-ins that a customer could order: no add-ins, one add-in all the way to all four add-ins. How many total distinct menu options, representing every possible combination of add-ins, must the manager prepare prices for?
(3 pts) 7.
