### Kate's Date

When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?

### Balancing the Books

How many visitors does a tourist attraction need next week in order to break even?

### Grandpa's Rock Cakes

Weekly Problem 34 - 2012
Grandpa made a super-heavy rock cake. Five people have guessed the weight of the cake. Can you work out the weight of his cake?

# Top Coach

##### Stage: 3 Challenge Level:

Emily, Lauren, Kathryn, Amelia, Amy and Kahlia from Ardingly College had some success with their training regime.They were close to the optimum training regime. However their crew would have had even more success if they'd done a little more work.

Congratulations to Emily from St Peters Anglican Primary School, Simon from Kent School, Sione from Cannons Creek Intermediate School, Joel from the Anglo-Chinese School, Marko from Acton High School, Syke and Melissa from St. Michael's School who all identified the optimum training regime.

Joel mentioned how he arrived at the solution:

I would race the other team until I found out their record, then find the best training regime to train my crew to break their record. If your record breaks their record, you will win the race. My record was 24.9 seconds.