Question: It took Dad 5 more than twice as long to vacuum upstairs then to vacuum downstairs. He vacuumed for a total of 38 minutes. How many minutes did he vacuum upstairs?
Answer: Let D = time in minutes to vacuum downstairs. Upstairs = 2D + 5 minutes. 3D + 5 = 38. 3D = 33. D = 11 minutes. Upstairs = (2 * 11) + 5 = 27 minutes. Dad took 27 minutes to vacuum upstairs. The answer is 27.
[Question]Polly and Gerald went for a fun afternoon riding mini race cars at the munchkin track, which is a one-quarter mile circular track. Polly managed to circle the track 12 times in one half hour, but Gerald's car was malfunctioning, and he only moved at an average speed half of what Polly did. What speed did Gerald's car average, in miles per hour?
[Answer]Polly circled the one - quarter mile track 12 times in 0.5 hours at a speed of 12 / 0.5 = 24 circuits of the track per hour. 24 / 4 = 6 miles per hour. Gerald traveled at a speed half of what Polly traveled for an average speed of 6 / 2 = 3 miles per hour. The answer is 3.
Q: Nancy has six pairs of boots, nine more pairs of slippers than boots, and a number of pairs of heels equal to three times the combined number of slippers and boots. How many shoes (individual shoes, not pairs) does she have?
A: First find how many pairs of slippers Nancy has: 6 pairs + 9 pairs = 15 pairs. Then add that number to the number of pairs of boots she has: 15 pairs + 6 pairs = 21 pairs. Then triple that number to find how many pairs of heels she has: 21 pairs * 3 = 63 pairs. Then add the number of pairs of each kind of shoe she has: 15 pairs + 6 pairs + 63 pairs = 84 pairs. Then multiply the number of pairs by 2 to find the number of individual shoes she has: 84 pairs * 2 shoes / pair = 168 shoes. The answer is 168.
Question: Claire has 400 flowers in her garden. One hundred twenty are tulips, and the rest are roses. Eighty of the roses are white, while the rest are red. Each red rose is worth $0.75. How much will Claire earn if she can sell 1/2 of the total number of red roses?
Answer: Claire has 400 - 120 = 280 roses in her garden. Thus, she has 280 - 80 = 200 red roses. One - half of the red roses is equal to 1 / 2 x 200 = 100. Therefore, Claire will earn $0.75 x 100 = $75 if she can sell 1 / 2 of the total number of red roses. The answer is 75.
[Question]A local park has 70 pigeons that call the park home. Half of the pigeons are black, and 20 percent of the black pigeons are male. How many more black female pigeons are there than black male pigeons?
[Answer]Black:70 / 2 = 35 pigeons. Black Male: 35(.20) = 7 pigeons. 35 - 7 = 28 female black pigeon. There are 28 - 7 = 21 more black female pigeons. The answer is 21.
[Question]A colony of bees can contain up to 80000 individuals. In winter they are more exposed to death, and if the winter is really cold the bees can begin to die slowly. If the colony starts to lose 1200 bees per day, how many days will pass until the number of bees in the colony reaches a fourth of its initial number?
[Answer]

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A fourth of the initial number of bees is 80000 bees / 4 = 20000 bees. The number of bees that has to die is 80000 bees – 20000 bees = 60000 bees. For the colony to reach a fourth of its population, 60000 bees ÷ 1200 bees / day = 50 days have to pass. The answer is 50.