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Maths Puzzle
Numerical Ability
How many gallons of pure antifreeze must be added to 20 gallons of 25% antifreeze to get a mixture that is 40% antifreeze
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x^6*X^7
TELL WEATHER THE RELATIONSHIP BETWEEN X AND Y IS LINEAR,EXPONENTIAL,OR NEITHER AND EXPLAIN THE ANSWER- X-0,1,2,3,4,5 -Y-1,1/4,1/16,1/64,1/256,1/1024 ?