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Maths Puzzle
Numerical Ability
What does 3ln(2-x) =
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If the ratio for concrete is 1 part cememt, 2 parts sand and 4 parts gravel and 400 lbs of sand was loaded in the mixer, how much cement and gravel should be used? I'm thinking c/
x-1+x-2=1-2x
x+3+x-3=3-x this is a fraction,line goes acrossn all 3