There are ten birds perched on a fence. A farmer aims his rifle and shoots one. How many birds are left?
One - the dead bird that the farmer shot.
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
Each machine takes 5 minutes to make its widget. Each of the 100 machines will have finished making its widget in 5 mintues
A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost?
The ball costs 5c. Not 10c. One dollar more than 10c is $1.10, $1.10 + 10c is $1.20
One dollar more than 5c is $1.05. The sum of which is $1.10