DISINI 1999FermatSolution
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They count the total number of legs and the total number of ears of the cattle.. The difference between these two numbers
Two basketball players, Alan and Bobbie, are standing on level ground near a lamp-post which is 8 m tall.. Each of the two players casts a shadow on
is the length of time (in minutes) that it takes for the number of atoms to halve.. triangle UVA ) are congruent equilateral triangles... By symmetry, all of the six triangles with
The distance between the sides of successive squares is 3 and the side length of the largest square is 22, as shown.. The other two contestants are one month and five months
The teacher also calculates that the difference between the highest and lowest marks is 40 and calculates that the average mark for the entire class is 58.. Show that the teacher
A magic square is a grid of numbers in which the sum of the numbers in each row, in each column, and on each of the two main diagonals is equal to the same number (called the
The graph shown at the right indicates the time taken by five people to travel various distances.. In a set of five numbers, the average of two of the numbers is 12 and the average
Each will then have 35 minutes to write the solutions of their allotted problem independently with no further discussion or exchange of problems.. The four team members are allowed
