2 out of 3
What's the largest volume of box you can make from a square of paper?
2 out of 3
Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?
1 out of 3
What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?
3 out of 3
Which is larger cos(sin x) or sin(cos x) ? Does this depend on x ?
1 out of 3
3 out of 3
2 out of 3
The famous film star Birkhoff Maclane wants to reach her refreshing drink. Should she run around the pool or swim across?
2 out of 3
in how many ways can you place the numbers 1, 2, 3 … 9 in the nine regions of the Olympic Emblem (5 overlapping circles) so that the amount in each ring is the same?
2 out of 3
At what angle should you throw something to maximise the distance it travels?
2 out of 3
Can you make all of these statements about averages true at the same time?
