Mathletics class competition- Year 8's

A short video of today's Year 8 Mathletics competition in the Hall.  The questions came fast and furiously as the many teams of three from each class battled to find solutions- here are some tasters:

1)  Emma is a teenager.  Her age is divisible by 3.  This time next year her age will be divisible by 4. How old is Emma now?

2)  Mr Lenz has 5 children.  Last week he took photos of them, with 3 in each photo.  If he took one photo of each possible choice of 3 children, how many photos did he take?

3)  Cinema tickets for one adult and one child cost a total of $18.  An adult's ticket is one-and a half times the price of a child's ticket.  How much does each ticket cost?


(Answers-  1-  15years old;      2-  10;      3-  child $7.20,  adult $10.80)