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Maths Puzzle
Numerical Ability
If Tom invests 6500.00 at 4% per year, how much additional money must he invest at 10% to ensure that the interst he recieves each year is 8% of the total invested.
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book Other Question
Given the general equation 5x^2-3x-7y^2-3y-8=0 identify the conic section it represents, and find its center.
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