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Maths Puzzle
Numerical Ability
The average of twelve different positive inegers is 12. What is the greatest possible value of any of these numbers?
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book Other Question
Ms. Jordan has been given a loan of $2500 for 1 year. If
the interest charged is $275, what is the interest rate on the loan?
Use cramers Rule to solve the Linear system
{5x-4y=8
{2x+7y=-3
solve the equation
5x2-8=22
solve the equation
3x2+5x2-1=0