Q: Every day, Lou works out by running three miles on a circular track that is one-quarter of a mile long. His wife, Rosie, also runs on the same track at the same time as her husband, but she runs at twice the speed of her husband. During their workout, how many times does Rosie circle the track?
A: If Lou runs 3 miles during his workout on a track that is 1 / 4 miles long, then he circles the track 3 / (1 / 4) = 12 times. If Rosie runs twice as fast as Lou, then over the same time period, she runs 3 * 2 = 6 miles. If Rosie runs 6 miles on the 1 / 4 mile track, then she circles the track 6 / (1 / 4) = 24 times. The answer is 24.
Question: There are 30 students in Ms. Leech's class. Twice as many girls as boys are in the class. There are 10 boys in the class and each boy today brought 5 cups for science activity class as Ms. Leech had instructed. If the total number of cups brought by the students in the class is 90, how many cups did each girl bring?
Answer: If there are 30 students in Ms. Leech's class, and the number of boys is 10, the number of girls in Ms. Leech class is 30 - 10 = 20. If each boy brought 5 cups for the science activity, the total number of cups brought by the boys is 5 * 10 = 50 cups. The number of cups that the girls brought is 90 - 50 = 40 of the total number. Since the number of girls in the class is 20, each girl brought 40 / 20 = 2 cups each. The answer is 2.
[Question]Eliana walked 200 steps for her morning exercise, did some press-ups, then added some 300 more steps to her count for the first day. The next day, she walked twice the number of steps she walked on the first day. And on the third day, Eliana walked an additional 100 steps. What's the total number of steps Eliana walked during these three days?
[Answer]On the first day, she walks 200 + 300 = 500 steps. The next day she walks twice the steps, which is 2 * 500 = 1000. The total number of steps after the two days are 1000 + 500 = 1500. On the third day, she walks an additional 100 steps, bringing the three - day total to 1500 + 100 = 1600 steps. The answer is 1600.
Q: During the soccer match, The Kickers scored 2 goals in the first period and twice that amount in the second period. The other team, The Spiders, scored half the amount that The Kickers scored in the first period and twice the amount that The Kickers scored in their second period. What is the total amount of goals both teams scored?
A: The Kickers scored twice as many as 2 goals in the second period, so 2 * 2 = 4 goals. The Spiders scored half as many as The Kickers' 2 goals from the 1st period so .5 * 2 = 1 goal in the first period. The Spiders scored twice as many as The Kickers' 4 goals from the second period, so 2 * 4 = 8 goals in the second period. Together, they scored 2 + 4 + 1 + 8 = 15 goals total. The answer is 15.
Question: Melody has three dogs. Each dog eats 1/2 of a pound of dog food twice a day. If Melody bought 30 pounds of dog food, how many pounds of dog food are left after a week?
Answer: Each dog eats 1 / 2 x 2 = 1 pound of dog food each day. So the three dogs eat a total of 1 x 3 = 3 pounds each day. That is 3 x 7 = 21 pounds in a week. Therefore, 30 - 21 = 9 pounds of food are left after a week. The answer is 9.
Q: Janet buys 45-pound containers of cat litter for $21 each. If her cat litter box holds 15 pounds of cat litter, and she changes out the litter weekly, how much will it cost, in dollars, for her to buy enough litter to last 210 days?
A:
If she changes the box weekly, then in 210 days, she will change the box 210 / 7 = 30 times. At 15 pounds of litter for every box change, she will require 30 * 15 = 450 pounds of cat litter in 210 days. If she buys 45 - pound containers, then for 450 pounds she will need to buy 450 / 45 = 10 containers of litter. At $21 per container, to buy enough cat litter for 210 days, it will cost 10 * $21 = $210. The answer is 210.