Counting Problems( Week 8 Practice) 1. How many internal angles in the following polygon? 2. A group of 30 students lined up. There are 1 students on the left of Curtis. How many students are there on his right? 3. A few pieces of wood wii be connected to form a long piece. Each connection needs 3 nails. How many pieces will be connected if 27 nails are used? 4. A light, pulled the first time, turns on; pulled the second time, still on; pulled the third time, turns off; and then backs to on pulled the fourth times. Kevin pulled 3 times, is the light on or off? 5. The buildings along one side of a certain street are numbered even numbers consecutively from 246 to 362. How many buildings are there in total along the side of the street? |