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andrecrompton
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jodeci
I will take C.
x=amount of gasoline in kiloliters and y=capacity of tank in kiloliters

statement 1. 1/2x=1/3y not sufficient

statement 2. 3/4+1/2x=y not sufficient

Both sufficient.

Two equations with two variables solvable


don't you think that statement 2 should be: 3/4 + x = y


End result is the same though: 2 equations and 2 unknowns => solvable!



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