Jill has 21 gallons of water stored in quart, half-gallon, and one gallon jars. She has equal numbers of each size jar holding the liquid. What is the total number of water filled jars?	Choose the correct choice:
A) 3 B) 6 C) 9 D) 36 E) 14
Let the number of each size of jar = wthen 1/4w + 1/2w + w = 21 1 3/4w = 21w=12The total number of jars = 3w =36Answer: 36
<result>D</result>
Jill has 21 gallons of water stored in quart, half-gallon, and one gallon jars. She has equal numbers of each size jar holding the liquid. What is the total number of water filled jars?