[Question]Julio goes fishing and can catch 7 fish every hour. By the 9th hour, how many fish does Julio have if he loses 15 fish in the process?
[Answer]Julio catches a total of 7 fish / hour * 9 hours = 63 fish. After losing some of the fish, Julio has 63 fish - 15 fish = 48 fish. The answer is 48.
Q: There are 20 hands in Peter’s class, not including his. Assume every student in the class has 2 arms and 2 hands. How many students are in Peter’s class including him?
A: There are 20 + 2 of Peter’s hands = 22 hands in Peter’s class including his. There are 22 hands / 2 hands per student = 11 students. The answer is 11.
Question: Pedro, Linden, and Jesus are playing a game. Jesus has 60 squares. Linden has 75 squares. Pedro has 200. How many more squares does Pedro have than both Jesus and Linden combined?
Answer: Pedro has 100 squares - 60 squares = 40 more squares than Jesus. Pedro has 100 squares - 75 squares = 25 more squares than Linden. Combined Pedro has 40 squares + 25 squares = 65 squares more than both Jesus and Linden. The answer is 65.
[Question]Armand is playing a guessing game with his dad where he has to guess a number his dad is thinking of. His dad tells him that the number, when multiplied by 3, is three less than twice 51. What is the number?
[Answer]102 is twice 51 because 2 x 51 = 102. Three less than 102 is 99 because 102 - 3 = 99. The number is 33 because 99 / 3 = 33. The answer is 33.
Q: Sara builds a birdhouse that is 1 foot wide, 2 feet tall and 2 feet deep. Jake builds a birdhouse that is 16 inches wide, 20 inches tall and 18 inches deep. What is the difference in volume between the two birdhouses?
A: To compare volumes, the measurements must be in the same units. There are 12 inches in 1 ft, so Sara’s birdhouse is 1 ft x 12 inches / ft = 12 inches wide, 2 ft x 12 inches / ft = 24 inches tall, and 2 ft x 12 inches / ft = 24 inches deep. The volume of Sara’s birdhouse is 12 inches x 24 inches x 24 inches = 6,912 cubic inches. The volume of Jake’s birdhouse is 16 inches x 20 inches x 18 inches = 5,760 cubic inches. The difference between the two birdhouses is 6,912 cubic inches – 5,760 cubic inches = 1,152 cubic inches. The answer is 1152.
Question: In five years Sam will be 3 times as old as Drew. If Drew is currently 12 years old, how old is Sam?
Answer:
In five years Drew will be 12 + 5 = 17 years old. In five years Sam will be 3(17) = 51 years old. Sam is currently 51 - 5 = 46 years old. The answer is 46.