exam Maths Puzzle Numerical Ability

how do you find lowest common denominators

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exam Other Question

GRAPH THE SOLUTION SETS FOR THE LINEAR INEQUALITIES

3X-Y<6
X>1
Y<3

< > < HAS UNDERLINE Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure antifreeze with an appropriate amount of 40% antifreeze solution. How many quarts of each should she use?