Mrs. Cavazos surveyed 256 sixth graders at Calville Middle School to see if they preferred a field trip to the aquarium or to the zoo. The data collected showed that 5 out of 8 sixth graders preferred a field trip to the zoo.

What is the number of sixth graders who preferred a field trip to the zoo?

The number of sixth graders who preferred a field trip to the zoo can be calculated by multiplying the total number of sixth graders (256) by the fraction of students who preferred the zoo (5/8):

256 x 5/8 = 160 sixth graders

Therefore, 160 sixth graders preferred a field trip to the zoo.