There are 48 adults because 120 x .4 = 48. 60% of members are children because 100 - 40 = 60. There are 72 children because 120 x .6 = 72. There are 24 more children than adults because 72 - 48 = 24.
The answer: 24
Reverse engineering the question: A church has 120 members. 40% are adults. The rest are children. How many children more children are there than adults?


Reasoning and answer: First find how many birds get scared away by kids: 36 seagulls / 4 = 9 seagulls. Then subtract that number from the starting total: 36 seagulls - 9 seagulls = 27 seagulls. Then divide that number by 3: 27 seagulls / 3 = 9 seagulls. Then subtract that number from the 27 seagulls to find the final number of seagulls: 27 seagulls - 9 seagulls = 18 seagulls.
The answer: 18
What was the question?
Question: There are 36 seagulls on the roof of the Taco Bell. Kids scare 1/4 of them away by throwing stones, and 1/3 of the remaining birds decide to fly to McDonald's parking lot. How many seagulls are left?


Micah picks 2 x 12 = 24 strawberries. After he eats 6, there are this many strawberries left for his mom: 24 - 6 = 18.
The answer: 18
Reverse engineering the question: Micah picks 2 dozen strawberries from the field. He eats 6 and saves the rest for his mom. How many strawberries are there for his mom?


Reasoning and answer: Andy has 6 x 4 = 24 white socks. He loses 24 / 2 = 12 white socks. He still has 12 - 6 = 6 white socks more than black socks.
The answer: 6
What was the question?
Question: Andy has 4 times as many white socks as he has black socks. If he loses half his white socks, how many more white socks does he still have than black socks if he has 6 black socks?


Maila read 12 x 2 = 24 pages today. So she was able to read a total of 12 + 24 = 36 pages since yesterday. There are 120 - 36 = 84 pages left to be read. Since she wants to read half of the remaining pages tomorrow, then she should read 84 / 2 = 42 pages.
The answer: 42
Reverse engineering the question: Julie is reading a 120-page book. Yesterday, she was able to read 12 pages and today, she read twice as many pages as yesterday. If she wants to read half of the remaining pages tomorrow, how many pages should she read?


The first 60 megabytes take 60 / 5 = 12 seconds. There are 90 - 60 = 30 remaining megabytes. The remaining 30 megabytes take 30 / 10 = 3 seconds. And 12 + 3 = 15 seconds.
The answer: 15
Reverse engineering the question:
The file, 90 megabytes in size, downloads at the rate of 5 megabytes per second for its first 60 megabytes, and then 10 megabytes per second thereafter. How long, in seconds, does it take to download entirely?