If an Open Barrel Contains 60 Gallons of a Liquid $\frac { 1 } { 10 }$

Multiple Choice

If an open barrel contains 60 gallons of a liquid, and each day $\frac { 1 } { 10 }$ of the barrel s contents evaporate. How many gallons are left in the barrel after 15 days?

A) 27.2 gallons
B) 35.4 gallons
C) 12.4 gallons
D) 10.8 gallons