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Maths Puzzle
Numerical Ability
How about graphing y=3/2-4?
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Arlene and AJ are Chemist. AJ can do an emulsion polymerization experiment in 10 hours. If AJ and Arlene work together they can do the experiment in 6 hours. How long will it takeo Arlene working by herself to do the experiment?
can you please help me with algebra