[Question]Nalani had two female dogs that were expecting and after a month gave birth to 10 puppies each. She then sold 3/4 of the puppies after they came of age, each at $200. Calculate the total amount of money she received from the sale of the puppies.
[Answer]If the two expectant dogs gave birth to 10 puppies each, the total number of puppies Nalani had is 10 + 10 = 20. When they came of age, Nalani sold 3 / 4 of the dogs, a total of 3 / 4 * 20 = 15 dogs. If each dog sold for $200, Nalani received 15 * 200 = $3000 from the sale of the dogs. The answer is 3000.
Q: Jed collects stamp cards. Every week, he gets 6 cards. But every two weeks, he gives 2 cards to his friends. If Jed started with 20 cards, after how many weeks will he have a total of 40 cards?
A: In the first week, Jed has 20 + 6 = 26 cards. In the second week, he has 26 + 6 = 32 cards. But he is left with 32 - 2 = 30 cards on the 2nd week after giving 2 cards to his friend. Then Jed has 30 + 6 = 36 cards on the 3rd week. He has 36 + 6 = 42 cards on the 4th week. After giving his friend 2 cards, he is then left with 42 - 2 = 40 cards on the 4th week. Hence, Jed will have a total of 40 cards in 4 weeks. The answer is 4.
Question: Amy biked 12 miles yesterday. If she biked 3 miles less than twice as far as yesterday, how many miles did she bike in total in the two days?
Answer: Twice the distance Amy biked yesterday is 12 * 2 = 24 miles. If Amy biked 3 miles less than twice as far as yesterday, she biked 24 - 3 = 21 miles today. The total distance she biked in the two days is 21 + 12 = 33 miles. The answer is 33.
[Question]If the number of dogs in the neighborhood was originally half the number of cats in the neighborhood before twenty new dogs were born, and now there are twice as many dogs as cats, how many cats were in the neighborhood, to begin with, if there are 20 cats now?
[Answer]Now there are twice as many dogs as cats, and if the number of cats is 20, there are 2 * 20 = 40 dogs. Before twenty new ones were born, the number of dogs in the neighborhood originally was 40 - 20 = 20. If the number of dogs in the neighborhood was originally half the number of cats in the neighborhood, there were 20 * 2 = 40 cats in the neighborhood. The answer is 40.
Q: There were 100 people in attendance at the school dance. Ten percent of the attendees were school faculty and staff. Of the remaining attendees, two-thirds were girls. How many boys attended the school dance?
A: Of 100 people in attendance at the school dance, 10% were school faculty and staff, or a total of 0.1 * 100 = 10 people. This leaves 100 - 10 = 90 students in attendance. Of the remaining attendees, two - thirds were girls, or (2 / 3) * 90 = 60 attendees were girls. Thus, the remaining 90 - 60 = 30 students were boys who attended the school dance. The answer is 30.
Question: Noah’s bedroom light uses 6 watts per hour. His office light is much brighter so he can see to work and uses three times as much energy. The living room light has a much larger space to cover and has to be more powerful, so it uses four times as much energy as his bedroom light. If Noah leaves all those lights on for two hours, how many watts has he used?
Answer:
Noah’s bedroom light uses 6 watts per hour, so it would use 2 * 6 = 12 watts in two hours. His office light uses 3 times as many watts as his bedroom light, so it uses 3 * 6 = 18 watts per hour. In two hours, the office light would use 18 * 2 = 36 watts. The living room light uses 4 times as many watts as his bedroom light, so it uses 4 * 6 = 24 watts per hour. In two hours, the living room light would use 24 * 2 = 48 watts. Thus, if Noah leaves all those lights on for two hours, he has used 12 + 36 + 48 = 96 watts. The answer is 96.