Question: A zoo has 16 pandas, paired into mates (in the same zoo). Only 25% of the panda couples get pregnant after mating. If they each have one baby, how many panda babies are born?
Answer: First divide the number of pandas by 2 to find the number of couples: 16 pandas / 2 = 8 panda couples. Then multiply that number by 25% to find the number of babies: 8 panda couples * 25% = 2 panda babies. The answer is 2.

Question: John wants to finish a show in 5 days. There are 20 episodes and they are each 30 minutes long. How many hours does he have to watch a day?
Answer: He wants to watch 20 * 30 = 600 minutes. So he needs to watch 600 / 60 = 10 hours. That means he needs to watch 10 / 5 = 2 hours a day. The answer is 2.

Question: Since the 40th president launched his reelection campaign today, he has raised $10,000 in campaign funds. His friends raised 40% of this amount and his family raised 30% of the remaining amount. The rest of the funds are from his own savings for the election. How much did he save for the presidency?
Answer: The total amount of money raised from friends contribution is 40 / 100 * $10000 = $4000. Minus his friend's contribution, the 40th president has raised $10000 - $4000 = $6000. The family raised 30 / 100 * $6000 = $1800. If the family raised $1800, the savings the 40th president had for the campaign is $6000 - $1800 = $4200. The answer is 4200.

Question: A teacher has to order supplies for his class to do a science project. Each student needs a bow, a small bottle of vinegar and a box of baking soda. Bows are $5 each, a bottle of vinegar is $2 and a box of baking soda is $1. The teacher has 23 students in this class. How much will the supplies cost?
Answer:
The supplies for every student will cost 5 + 2 + 1 = $8. The supplies for the whole class will cost 8 * 23 = $184 in total. The answer is 184.