[Question]The leak in Jerry's roof drips 3 drops a minute into the pot he put under it. Each drop is 20 ml, and the pot holds 3 liters. How long will it take the pot to be full?
[Answer]First find the pot's volume in ml: 3 liters * 1000 ml / liter = 3000 ml. Then find the number of ml that enter the pot per minute: 3 drops / minute * 20 ml / drop = 60 ml / minute. Then divide the volume of the pot by the volume that enters it every minute: 3000 ml / 60 ml / minute = 50 minutes. The answer is 50.
Q: Theon's ship can move 15 nautical miles per hour while Yara's ship can move 30 nautical miles per hour. If their destination is 90 nautical miles away, how many hours ahead will Yara be ahead of Theon?
A: Theon's estimated time of arrival is 90 / 15 = 6 hours. Yara's estimated time of arrival is 90 / 30 = 3 hours. Therefore, Yara is ahead by 6 - 3 = 3 hours. The answer is 3.
Question: If 100 pieces, each 15 centimeters long, are cut from a 51-meter long ribbon, how much ribbon remains ?
Answer: The total length cut from the 51 - meter ribbon is 100 x 15 centimeters = 1500 centimeters. Since 1 meter is equal to 100 centimeters, then 1500 centimeters is equal to 1500 / 100 = 15 meters. Therefore, 51 - 15 = 36 meters of ribbon remains. The answer is 36.
[Question]Joseph had 16 baseball cards. He gave 3/8 of the cards to his brother and 2 cards to his brother. What percentage of the cards is left to Joseph?
[Answer]Joseph gave 16 x 3 / 8 = 6 cards to his brother. He gave a total of 6 + 2 = 8 cards to his brother and friend. Joseph has 16 - 8 = 8 cards left. This is 8 / 16 x 100% = 50% of his cards. The answer is 50.
Q: Miss Darlington has a basket of 20 blueberries. She picked 9 more baskets with the same amount of berries. How many blueberries did Miss Darlington have in all?
A: Miss Darlington picked 9 x 20 = 180 blueberries more. So she had a total of 180 + 20 = 200 blueberries. The answer is 200.
Question: Oliver owns a laundry shop, and he charges $2 per kilo of laundry. Two days ago, his shop washed a total of 5 kilos of laundries. Yesterday, it washed five kilos of laundries more than the previous day. Today, it washed twice the number of kilos than yesterday. How much did he earn for three days?
Answer:
Yesterday, his shop washed 5 + 5 = 10 kilos of laundry. Today, it washed 2 x 10 = 20 kilos of laundry. Thus, Oliver's shop washed a total of 5 + 10 + 20 = 35 kilos of laundries for three days. Therefore, his shop earned 35 x $2 = $70 for three days. The answer is 70.