Answer the following question.
A group of security guards were hired for the night shift at a factory. The four guards agreed to a rotating schedule to cover the nine hours of the night shift. The first guard would take three hours since they were still awake, the last guard would wake up early and take two hours, and the middle two guards would split the remaining hours. How many hours will each middle guard take?
Step-by-step reasoning process: The first and last guard will take 3 + 2 = 5 hours of the night shift. There are 9 hours in the night shift, so the middle two guards will cover 9 - 5 = 4 hours. Each middle guard will take 4 / 2 = 2 hours.
The answer is 2.

Answer the following question.
A third of all the cats in the village have spots. A quarter of the spotted cats in the village are fluffy. If there are 120 cats in the village, how many of the cats are spotted and fluffy?
Step-by-step reasoning process: If a third of the cats have spots and a quarter of those are fluffy (1 / 3) x (1 / 4) = 1 / 12 cats are both fluffy and spotted. Out of 120 cats, 120 cats / 12 = 10 cats are spotted and fluffy.
The answer is 10.

Answer the following question.
Jerry works five days a week as a waiter and earns a variable amount of tips every night. The past four nights, he earned $20, $60, $15, and $40. How much does he need to earn tonight if he wants to make an average of $50 in tips per night?
Step-by-step reasoning process: The total money Jerry needs to make for 5 days to get $50 per night is 5 nights * $50 / night = $250. His total earnings for the past four days is $20 + $60 + $15 + $40 = $135. So, Jerry needs to earn $250 - $135 = $115 in tips tonight.
The answer is 115.

Answer the following question.
Ayen jogs for 30 minutes every day during weekdays. This week on Tuesday, she jogged 5 minutes more and also jogged 25 minutes more on Friday. How many hours, in total, did Ayen jog this week?
Step-by-step reasoning process: Ayen jogged for a total of 30 x 3 = 90 minutes on Monday, Wednesday, and Thursday. She jogged for 30 + 5 = 35 minutes on Tuesday. She also jogged for 30 + 25 = 55 minutes on Friday. So, Ayen jogged for a total of 90 + 35 + 55 = 180 minutes. In hours, this is equal to 180 minutes / 60 minutes / hour = 3 hours.
The answer is 3.