Question: A school bought pencils and pens. A pencil costs $2.50, while a pen costs $3.50. How much do 38 pencils and 56 pens cost?
Answer: Step-by-step reasoning process: The 38 pencils cost $2.5 x 38 = $95. The 56 pens cost $3.5 x 56 = $196. The total cost of 36 pencils and 56 pens is $95 + $196 = $291.
So the answer is 291.

Question: A farm has 100 chickens. 20 percent are Black Copper Marans, and 80 percent of the Black Copper Marans are hens. How many BCM hens are there?
Answer: Step-by-step reasoning process: Black Copper Marans: 100(.20) = 20. BCM Hens:20(.80) = 16.
So the answer is 16.

Question: Emily is on a flight from New York to Hawaii that is 10 hours long. To kill time, she watches 3 TV episodes that are each 25 minutes long. Then she sleeps for 4 and a half hours. Then she watches 2 movies that are each an hour and 45 minutes long. After doing all these things, assuming there is no break time between activities, how many more minutes are left in the flight before Emily reaches Hawaii.
Answer: Step-by-step reasoning process: Emily spends 3 episodes * 25 minutes = 75 minutes watching TV. Emily spends 4.5 hours * 60 minutes = 270 minutes sleeping. Emily spends 2 movies * 1.75 hours * 60 minutes = 210 minutes watching movies. The total time spent doing activities is 75 + 270 + 210 = 555 minutes. The total length of the flight is 10 hours * 60 minutes = 600 minutes. The number of minutes remaining in the flight is 600 - 555 = 45 minutes.
So the answer is 45.

Question: It’s February 2021. Mark was born in January 1976. Graham is 3 years younger than Mark, and Graham’s sister, Janice, is 1/2 the age of Graham. How old is Janice?
Answer:
Step-by-step reasoning process: It’s 2021 and Mark was born in 1976 so Mark is 2021 - 1976 = 45 years old. Graham is 3 years younger than Mark who is 45 so Graham is 45 - 3 = 42 years old. Janice is 1 / 2 the age of Graham who is 42 so Janice is 42 / 2 = 21 years old.
So the answer is 21.