How many unique handshakes if each person in a group of 10 give handshakes out to each and every other individual. (a) 100 (b) 50 (c) 45 (d) 20 (e) 10
45. Imagine it as a polygon of side 10. Or draw out triangle, square, pentagon, and see the pattern yourself, if you don't know the algorithm.
true, or 9+8+7+...+2+1
Or just do: (10 Combination 2) = 10!/(2!8!) = 45
When you have a large portfolio of projects under you, how do you know when a project is healthy or at risk? What indicators do you look for? What information do you request from project managers / task leaders, and how do you track it? Follow up question (just as important) -- Give a specific example of what you have done when you have identified a project risk. What was the risk? How did you identify it? What did you do about it?