Right answer

Automatic, wrong answer


A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?

5 cents

10 cents


If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?

5 minutes

100 minutes


In a lake, there is a patch of lily pads. 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 the patch to cover half the lake?

47 days

24 days