The number of square feet used for fruit is 64 / 2 = 32 square feet. The number of square feet used for strawberries is 32 / 4 = 8 square feet.
The answer: 8
Reverse engineering the question: Joel's garden is 64 square feet large. He wants to use half of the garden for fruits and half of the garden for vegetables. He wants to use a quarter of the fruit section for strawberries. How many square feet of the garden will be used for strawberries?
Reasoning and answer: William used two days to the limit, which means 6 * 2 = 12 hours of horse riding. For two days he rode a horse 1.5 a day, which makes up to 1.5 * 2 = 3 hours. For the next two days, he used only half of the maximum time which means 6 * 0.5 = 3 hours a day. That means 2 * 3 = 6 hours during these two days. So in total William rode his horse for 12 + 3 + 6 = 21 hours.
The answer: 21
What was the question?
Question: William is a jockey. He can ride his horse for 6 hours a day. Over 6 days, he only used the maximum riding time twice. On two days he rode his horse for only 1.5 hours a day and half the maximum time for the next two days. How many hours did William ride his horse during those 6 days?
If half of the fruit equals 9 pieces, then Tanya bought 2 * 9 = 18 pieces of fruit. Thus, Tanya bought 18 - 6 - 4 - 2 = 6 plums.
The answer: 6
Reverse engineering the question: Tanya went to the grocery store to buy some fruit. She bought 6 pears, 4 Granny Smith apples, 2 pineapples, and a small basket of plums, which were all placed in a single paper bag. Unfortunately, the bag that the fruit had been placed in had developed a hole. Therefore, as Tanya walked home, half of the fruit fell out of the bag. When she later counted the fruit left in the bag, there were only 9 pieces remaining. How many plums did she buy?
Reasoning and answer: Ursula's boss want's the commercial to be 30 / 100 * 30 = 9 seconds shorter. After Ursula makes the desired changes, the ad is going to be 30 - 9 = 21 seconds long.
The answer: 21
What was the question?
Question: Ursula is working at a marketing firm. She created a 30-second long commercial. Her boss told her that this commercial is too long to air and told her to shorten the commercial by 30%. How long will this commercial be after Ursula makes the desired changes?
Since there are 2 sets of 30 minutes in an hour, then in 8 hours there are 8 x 2 = 16 sets of 30 minutes. Hence, a machine that Sue oversees can produce 30 cans x 16 = 480 cans of soda in 8 hours.
The answer: 480
Reverse engineering the question: Sue works in a factory and every 30 minutes, a machine she oversees produces 30 cans of soda. How many cans of soda can one machine produce in 8 hours?
If there are 600 pines, there are 20 / 100 * 600 = 120 more redwoods than pine trees in the national park. In total, there are 120 + 600 = 720 redwoods in the national park. Altogether, there are 720 + 600 = 1320 pines and redwoods in the national park.
The answer: 1320
Reverse engineering the question:
In a national park, the number of redwoods is 20% more than the number of pines. If there are 600 pines in the national park, calculate the total number of pines and redwoods that are there.