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Maths Puzzle
Numerical Ability
Find slope given the following points: (2.5) and (2.1)
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How do you find the area of a quadrilateral with no even sides? an example is ten by 9.9 by 4.5 by 9. please give this back as soon as possible.
A sum of money is divided between three men A B C in the ratio 7:5:1. If B has £2.50 more than C, How much does A receive?
I managed to get the answer but do not know the logic