Q: Lara bought 52 stems of flowers at the flower shop. She gave 15 flowers to her mom and gave 6 more flowers than she gave to her mom to her grandma. She put the rest in a vase. How many stems of flowers did Lara put in the vase?
A: Lara gave 15 + 6 = 21 stems of flowers to her grandma. She gave away 21 + 15 = 36 stems of flowers. Therefore, Lara put 52 - 36 = 16 stems of flowers in the vase. The answer is 16.

Q: The chocolate factory produces 50 candies per hour. It has to fulfill an order and produce 4000 candies. How many days will it take to complete the order if the factory works for 10 hours every day?
A: It will take 4000 candies / 50 candies / hour = 80 hours to make all the candy. It will take 80 hours / 10 hours / day = 8 days to complete the order. The answer is 8.

Q: Annie does a survey of the sixth-grade classes to see who prefers pretzels to goldfish. In Miss Johnson's class, 1/6 of the students preferred goldfish. In Mr. Feldstein's class, 2/3rds of the students preferred goldfish. In Ms. Henderson's class, 1/5 of the students prefer goldfish. If each class has 30 students, how many people total prefer goldfish?
A:
First find the number of students in Mr. Feldstein's class who prefer goldfish: 2 / 3 * 30 students = 20 students. Then find the number of students in Mr. Feldstein's class who prefer goldfish: 1 / 6 * 30 students = 5 students. Then find the number of students in Ms. Henderson's class who prefer goldfish: 1 / 5 * 30 students = 6 students. Then add the number of students from each class who prefer goldfish to find the total: 20 students + 5 students + 6 students = 31 students. The answer is 31.