Question: A man divides 3 hectares of land evenly among his 8 sons. If every 750m^2 of this land can be used to make a profit of $500 from every 3 months of commercial farming, how much can each son make if they cultivate their share of the land for one year(1 hectare is equal to 10000 m^2)?
Answer: There are 10000m^2 in each hectare, so 3 hectares contains 3 * 10000 = 30000m^2 of land. 30000m^2 is divided among 8 sons so each son will get 30000 / 8 = 3750m^2. In every 3750m^2, there are 3750 / 750 = 5 portions of 750m^2 areas of land. Each son can make 5 * $500 = $2500 every 3 months from cultivating their share. In one year there are 12 months so each son can make $2500 up to 12 / 3 = 4 times in a year. Each son can make a total of $2500 * 4 = $10000 in a year. The answer is 10000.
[Question]Mia is a student. In her final year, she spent 1/5 of her day watching TV and 1/4 of the time left on studying. How many minutes did she spend studying each day?
[Answer]If Mia spent 1 / 5 of her day watching TV, her remaining time in a day is 5 / 5 – 1 / 5 = 4 / 5 for other things. So, the time left is 24 * 4 / 5 = 19.2 hours. The time spent studying is 19.2 / 4 = 4.8 hours. In minutes, that is 4.8 * 60 = 288 minutes. The answer is 288.
Q: On a particular day, Rose's teacher read the register and realized there were twice as many girls as boys present on that day. The class has 250 students, and all the 140 girls were present. If all the absent students were boys, how many boys were absent that day?
A: If there were twice as many girls as boys present that day, then the number of boys is 140 girls / 2 girls / boy = 70 boys. The total number of students present that day is 140 girls + 70 boys = 210 students. If the class has 250 students, then the number of boys absent is 250 students - 210 students = 40 boys. The answer is 40.
Question: During a commercial break in the Super Bowl, there were three 5-minute commercials and eleven 2-minute commercials. How many minutes was the commercial break?
Answer: The 5 - minute commercials were 3 * 5 = 15 minutes in total. The 2 - minute commercials were 2 * 11 - 22 minutes in total. The commercial break was 15 + 22 = 37 minutes long. The answer is 37.
[Question]Wendy works at a chocolate factory packing chocolates. She can package 2 dozen chocolates in 5 minutes. How many individual chocolates can she package in 4 hours?
[Answer]There are 60 minutes in an hour and she packs chocolate in 5 - minute increments. So that's 60 / 5 = 12 5 minute increments in 1 hour. 12 chocolates make 1 dozen and she packages 2 dozen in 5 minutes so that's 12 * 2 = 24 chocolates in 5 minutes. 12 5 minute increments are in an hour and she packages 24 chocolates in 5 minutes so she can package 12 * 24 = 288 individual chocolates in 1 hour. If she packages 288 individual chocolates in 1 hour then in 4 hours she can package 288 * 4 = 1,152 individual chocolates. The answer is 1152.
[Question]Malcolm brushes his teeth for 2 minutes after breakfast, lunch and dinner. After 30 days, how many hours does he spend brushing his teeth?
[Answer]
He brushes his teeth 3 times a day, after breakfast, lunch and dinner. He brushes for 2 minutes so that’s 3 * 2 = 6 minutes per day. He brushes 6 minutes per day so after 30 days he has brushed 6 * 30 = 180 minutes. There are 60 minutes in 1 hour and he brushes for 180 minutes so that’s 180 / 60 = 3 hours. The answer is 3.