Since 80% of the people were adults, this means 100% - 80% = 20 % were children. 20% of the people vaccinated were children. The number of children is 20% of 650. 20% = 0.2, so 0.2 * 650 = 130 children were vaccinated.
The answer: 130
Reverse engineering the question: A clinic administered the covid vaccine to 650 people. 80% of the people were adults. How many of the vaccinated people were children?


Reasoning and answer: 40 slices per watermelon and each slice having 20 black seeds means each watermelon has 20 * 40 = 800 black seeds. 40 slices per watermelon and each slice having 20 white seeds means each watermelon has 20 * 40 = 800 white seeds. In total, each watermelon has 800 + 800 = 1600 seeds. What is the total number of seeds in a watermelon?.
The answer: 1600
What was the question?
Question: Val cuts a single watermelon into 40 slices, and each slice has 20 black seeds and 20 white seeds. What is the total number of seeds in a watermelon?


There were 20 x 0.20 = 4 sacks of rice increase after the first harvest. So the total sack of rice that you can get on the next harvest 20 + 4 = 24. Therefore the total number of sacks of rice you will get on the first and second harvest is 20 + 24 = 44.
The answer: 44
Reverse engineering the question: In a rice field, you can get a total of 20 sacks of rice every harvest. If the yield increases by twenty percent after every harvest, what is the total number of sacks of rice you can get after the first and second harvest?


Reasoning and answer: Let p be the number of packages Angela delivers and m be the number of meals. We know that p + m = 27 and p = 8m. Substituting the second equation into the first equation, we get 8m + m = 27. Combining like terms, we get 9m = 27. Dividing both sides by 9, we get m = 3.
The answer: 3
What was the question?
Question: Angela is a bike messenger in New York. She needs to deliver 8 times as many packages as meals. If she needs to deliver 27 meals and packages combined, how many meals does she deliver?


Start by finding how many fish were in the aquarium on the third day 6 * 2 * 2 = 24. On day three, Jason took out one - third of the fish 24 / 3 = 8. So at the end of day three, he has 24 - 8 = 16 fish. On day five he has 16 * 2 * 2 = 64 fish, but he takes out one - fourth. So he took out 64 / 4 = 16 fishes. So at the end of day five, he has 64 - 16 = 48 fish. On day seven he has 48 * 2 * 2 = 192 fish. He adds in 15 more, so he has 192 + 15 = 207 fish in total.
The answer: 207
Reverse engineering the question: Jason has six fish in his aquarium. He realizes that every day the number of fish doubles. On the third day he takes out one-third of the fish. On the fifth day he takes out one-fourth of the fish. On the seventh day he adds 15 more fish. How many fish in total does he have?


If Maude's age is 8 by the time Anne's age is four times Emile's age, Emile will be six times as old as Maude, which totals 6 * 8 = 48 years. If Emile's age is 48 years old by the time Anne's age is twice her number, Anne will be 2 * 48 = 96 years.
The answer: 96
Reverse engineering the question:
By the time Anne is two times as old as Emile, Emile will be six times as old as Maude. If Maude will be 8 years old, how old will Anne be?