Good luck!

3 Questions

How smart are you?


Question 01

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

[$1 = 100 cents]

Question 02

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

Question 03

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 many days would it take for the patch to cover half of the lake?

SOURCE: edX The Science of Everyday Thinking, The University of Queensland, Australia

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