exam
Maths Puzzle
Numerical Ability
four pencils and 2 pens cost $2.26. six pencils and five pens cost $5.17. find the cost of the pencil. find the cost of the pen
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exam Other Question
Find the inverse (A^-1) of the following matrix.
A= [3 -2 -3]
[-2 1 0]
[2 3 -1]
how do you make equation that epuals to 31.