Two Different Gasohol Mixtures Are Available

Multiple Choice

Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 1500 gal of gasohol containing 10% alcohol?

A) 429 gal 5%; 1071 gal 12%
B) 625 gal 5%; 875 gal 12%
C) 75 gal 5%; 180 gal 12%
D) 1071 gal 5%; 1071 gal 12%