exam
Maths Puzzle
Numerical Ability
How much antifreeze must be added to a 10 gallon of 20% antifreeze to make 50% antifreeze solution?
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Can you help me with this problem?
3x^2 - 6x - 3 = 12 - 6x
I need some help on how to solve a mixture solving problem.
How many gallons of 65% antifreeze and how many gallons of 20% antifreeze should be mixed to obtain 50 gallons of a 56% mixture of antifreeze?
Thank you!