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Maths Puzzle
Numerical Ability
In the diagram above, if O is the centre of the circle, then y=
(A) 25 degrees
(B) 80 degrees
(C) 90 degrees
(D) 100 degrees
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book Other Question
12x squared + 5x-2=0
Solve if possible or determine no solution or infinite solutions.
x+3y=-15
2x+5y=-21