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Problem 1
Two circles intersect with their centres 6cm apart. Circle A has area 50cm^{2} and Circle B has area 30cm^{2}. Find the difference in area between the blue and the red shaded regions. 

Problem 2
Towns A, B, C, D, E, F, G and H lie on a straight road. The table shows the distances between pairs of towns (for example, D is 19km from G). Fill in the distances in the rest of the table. 

Problem 3
A triangle is made up of ten cents. What is the smallest number of coins which must be moved to turn the triangle upsidedown? 

Problem 4
In the diagram, three squares are shown, all containing the star. Altogether, how many squares containing the star can be found in the diagram? 

Problem 5
Twenty postage stamps are joined together as shown. In how many different ways can three postage stamps, joined together along their edges, be torn from the sheet? 

Problem 6
Twentyone gas cylinders are to be loaded onto three trucks. Seven are full, seven are halffull and seven are empty. A full cylinder weighs 50kg and an empty cylinder weighs 20kg. How should they be loaded onto the trucks so that each truck is carrying the same weight? 

