Elimination Tournament Round 6 6th Annual WSMA Math Bowl January 23rd, 2016 This test material is copyright © 2016 by the Washington Student Math Association and may not be distributed or reproduced other than for nonprofit educational purposes without the expressed written permission of WSMA. www.wastudentmath.org.

Copyright © 2016 by the Washington Student Math Association Problem 1 How many ways are there to select 5 books from a collection of 7?   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Problem 2 What is the area of a hexagon with side lengths of 2?   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Problem 3 Solve for x: 4x + 7 = 3x + 8   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Problem 4 How many positive factors does 12 have?   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Problem 5 How many multiples of 5 but not 15 are there between 1 and 100?   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Problem 6 What is the probability that a random point within a circle with radius 2 centimeters is 1 centimeter from the center?   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Problem 7 What is the difference between the largest and smallest 4-digit number you can make, where each digit is distinct and is one of 1, 4, 7, 3, or 5?   Copyright © 2016 by the Washington Student Math Association

Copyright © 2016 by the Washington Student Math Association Extra Question What is 1234 6 in base 10?   Copyright © 2016 by the Washington Student Math Association