Answers by visitors named: Mark Rober

The Bus will leave in 60 minutes its 8 am to 11 am

A - correct B - I assume we can now use the 1?2?4? , so we can use only 7 other digitsnumber of ways= 7x1x6x1x5 = 210 c - correct D - evens at front and end4x?x?x?x3 , leaves 7 for the other places= 4x7x6x5x3 = 2520 also the other person stole my answer

I'm mark doing this for a video and testing. I already know this question but I'm looking for your answers Does Math stand for? And it is not mental abuse to humans

1 hour and 35 amigo