Angelina wants to produce her own alcohol blend containing 60 wt % ethanol and 40 wt % water. She has on hand a tank which contains 300 gallons of 75 wt % ethanol solution (S.G.= XXXXXXXXXXobtained...

    Angelina wants to produce her own alcohol blend containing 60 wt % ethanol and 40 wt % water.  She has on hand a tank which contains 300 gallons of        75 wt % ethanol solution (S.G.= 0.877) obtained from her old supplier and she can purchase any desired amount of a 40 wt % ethanol solution (S.G.= 0.952) from a new supplier.  How many gallons of the 40% ethanol solution must she buy to produce the 60% blend ?

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