Brain Teasers paper...?

I think that the boy will jump farther going the opposite cuz the plane goes forward and the boy stays in midair then lands closer to the back of the plane. Think about it. If you jumped in the air while a rug was pulled from under you, you'd end up at the end of the rug when you landed, right? And I think the smoke will blow southeast. Sorry, not very good at math. And thirdly, I think it will take one student to dig half a feet wide and long in 30 seconds? Sorry again. Not good at math. Hope that'll help you.