Hands-on math!

Washington State Math Olympiad
Hints and Solutions
2017 Grade 8 Measurement
Problem
1) Mia travels 8⁄3 miles in 4⁄9 hours. What is her speed in miles per hour?

2) A pizza with an 8 inch diameter will feed five people. At this rate, how many people will a pizza with a 24 inch diameter feed?

3) A rectangular box has a surface area of 126 square meters, and a volume of 216 cubic meters. A smaller scale model of the box is made. The smaller box has a surface area of 14 square meters, what is its volume?

Problem
4) Along the race route Giselle places a black marker every 88 feet. Zakaria places a red marker every 156 feet. What is the shortest distance from the start where a black marker and a red marker at at the same spot?

5) ABCD is a square with an area of 56 sq. in. Each square in the figure is formed by joining the midpoints of the next larger square. What is the area of QRST?