### Boxed In

A box has faces with areas 3, 12 and 25 square centimetres. What is the volume of the box?

### Plutarch's Boxes

According to Plutarch, the Greeks found all the rectangles with integer sides, whose areas are equal to their perimeters. Can you find them? What rectangular boxes, with integer sides, have their surface areas equal to their volumes?

### The Genie in the Jar

This jar used to hold perfumed oil. It contained enough oil to fill granid silver bottles. Each bottle held enough to fill ozvik golden goblets and each goblet held enough to fill vaswik crystal spoons. Each day a spoonful was used to perfume the bath of a beautiful princess. For how many days did the whole jar last? The genie's master replied: Five hundred and ninety five days. What three numbers do the genie's words granid, ozvik and vaswik stand for?

# Cuboid Challenge

##### Stage: 3 Challenge Level:

Maya sent us this fantastic solution containing a clear explanation of her thinking at each stage of her work. Well done Maya.

Well done also to Jordan from Breckland Middle School, to Yun from Garden International School and to Liam, Alex, Kevin and Andrew from Park View School who all used a very similar strategy to arrive at the solution, and to Stephen from Park View School who sent us this solution