exam Maths Puzzle Numerical Ability

The point (0,-1) on the unit circle is rotated 315 degrees counter-clockwise.Determine the coordinates of the new point.

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exam Other Question

where would i mark 1 1/4 on a numberline ? A dairy has 50 Gallons of milk that is 7.8 % butterfat. how much skim milk (no butterfat) should be mixed with it to make milk that is 2% butterfat?