You may also like

problem icon

Not a Polite Question

When asked how old she was, the teacher replied: My age in years is not prime but odd and when reversed and added to my age you have a perfect square...

problem icon

Whole Numbers Only

Can you work out how many of each kind of pencil this student bought?

problem icon


Add up all 5 equations given below. What do you notice? Solve the system and find the values of a, b, c , d and e. b + c + d + e = 4 a + c + d + e = 5 a + b + d + e = 1 a + b + c + e = 2 a + b + c + d = 0

Weekly Problem 21 - 2006

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

84cm represents:
the height of the table minus the long side of a block plus the short side of a block.
96cm represents:
the height of the table plus the longside of a block minus the short side of a block.

So 84cm + 96cm represents two heights of the table.
The height of the table is therefore 90cm.

This problem is taken from the UKMT Mathematical Challenges.

View the previous week's solution