[Question]: Rita put a $120 elliptical machine on layaway at her local sports good store. After making a down payment equal to half the cost of the machine, she completely forgot about it. Sometime before the pick-up date, a store employee called offered to waive all layaway fees and taxes on the condition that Rita paid the balance within 10 days. What is the daily minimum amount, in dollars, that Rita must pay to own the elliptical machine?
[Answer]: The down payment Rita made was 120 / 2 = 60 dollars. The balance was therefore 120 - 60 = 60 dollars. To pay off the balance within 10 days, Rita must make payments of 60 / 10 = 6 dollars per day.
So the answer is 6.

[Question]: In Mr. Bolton's class of 25 students, 2/5 of the students like maths, 1/3 of the remaining students like science, and the rest of the students like history. Calculate the combined total number of students who like history and those who like maths.
[Answer]: If there are 25 students in the class, then 2 / 5 * 25 = 10 students like maths. The number of students who don't like math is 25 - 10 = 15 students. If 1 / 3 of the students that don't like math like science, then 1 / 3 * 15 = 5 students like science. The remaining number of students who enjoy history is 15 - 5 = 10. The combined total for the students who want history and maths is 10 + 10 = 20.
So the answer is 20.

[Question]: There are 40 ducks in a pond. 50 percent of the ducks are Muscovy and 30 percent of the Muscovies are female. How many female Muscovy ducks there?
[Answer]:
Muscovies: 40(.50) = 20 Muscovy ducks. Female Muscovies:20(.30) = 6 ducks.
So the answer is 6.