1. The Bat and Ball Problem
A bat and a ball together cost $1.10. The bat costs $1 more than the ball. How much does the ball cost?
2. The Widget-Making Machine Problem
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
3. The Size-Double Lily Pad Patch Problem
There
is a patch of lily pads in a lake. Every day, the patch doubles in
size. If it takes 48 days for the patch to cover the entire lake, how
long would it take for the patch to cover half the lake?