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Maths Puzzle
Numerical Ability
x^6*X^7
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1.A standard rectangular highway billboard sign has a perimeter of 124 ft. the length is 6 ft more then three times the width. find the dimensions of the sign.
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How many gallons of pure antifreeze must be added to 20 gallons of 25% antifreeze to get a mixture that is 40% antifreeze