Answer the following question.
Stephen has 110 ants in his ant farm. Half of the ants are worker ants, 20 percent of the worker ants are male. How many female worker ants are there?
Step-by-step reasoning process: Worker ants:110 / 2 = 55 ants. Male worker ants:55(.20) = 11. Female worker ants:55 - 11 = 44 ants.
The answer is 44.

Answer the following question.
Three different 6th grade classes are combining for a square dancing unit. If possible, the teachers would like each male student to partner with a female student for the unit. The first class has 17 males and 13 females, while the second class has 14 males and 18 females, and the third class has 15 males and 17 females. When the classes are combined, how many students will be unable to partner with a student of the opposite gender?
Step-by-step reasoning process: Combining the three classes, there are 17 + 14 + 15 = 46 male students. Similarly, there are 13 + 18 + 17 = 48 female students. Thus, there are 48 - 46 = 2 students who cannot partner with a student of the opposite gender.
The answer is 2.

Answer the following question.
Rob and Mark plan to meet at the national park. It takes 1 hour for Rob to get to the national park and it takes three times as much time for Mark to get to the national park. If Rob leaves his home at 11 a.m., at what time should Mark leave his home so that they both arrive at the same time?
Step-by-step reasoning process: It takes 1 hour * 3 = 3 hours for Mark to get to the national park. The extra time it takes Mark to get to the national park is 3 hours - 1 hour = 2 hours. Mark should leave his home at 11 a.m. - 2 hours = 9 a.m.
The answer is 9.

Answer the following question.
Merry had 50 boxes of apples on Saturday and 25 boxes on Sunday. There were 10 apples in each box. If she sold a total of 720 apples on Saturday and Sunday, how many boxes of apples are left?
Step-by-step reasoning process: Merry had a total of 50 + 25 = 75 boxes of apples. These 75 boxes is equal to 75 x 10 = 750 apples. There were 750 - 720 = 30 apples left. Thus, 30 / 10 = 3 boxes of apples are left.
The answer is 3.