Question: i need help in the following questions thank you 1...
I need help in the following questions. Thank you
1. A family with two parents and three children are going on a hike. The trail is narrow, so they must walk single-file. They want to have an adult in front and an adult at the end. How many different orderings are possible?
2 There are 30 boys and 35 girls that try out for the choir, but only 10 boys and 10 girls will be selected. How many different choirs could we end up with?