2012 TMO - 2 Point Questions
These questions are the 2-point questions from the Individual Contest of the 2012 TMO
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There are eleven players on a soccer team.  The average age of a player is 22 years.  During a game, a 32 year old player got injured and left the field.  What is the average age of the players left on the field?  (If the answer is a decimal, use a maximum of 2 decimal places).
1 point
If a < 0, b > 0 and c = 0, is the expression ab + ac + bc  negative or positive?
1 point
Clear selection
A square is divided into four identical rectangles.  The perimeter of each of the four rectangles is 30cm.  How many centimetres is the perimeter of the square?
1 point
Captionless Image
A and B are two points on the circumference of a circle with center O.   If AO = x + 6, and BO = 4x, what is x?
1 point
Adrian can paint a fence in 1 hour and Sheena can paint the same fence in 2 hours.   How many minutes does it take Adrian and Sheena to paint the fence together?
1 point
If a + b = 13, b + c = 14, c + a = 15, find the value of c.
1 point
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