You have 9 footballs and a two-pan balance. One of the footballs is heavier than the rest. Using the balance only twice how can you work out which is the heavy one?
It's good to leave some feedback.
Something went wrong, please try again later.
This resource hasn't been reviewed yet
To ensure quality for our reviews, only customers who have downloaded this resource can review it
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.