Nick sold 55 - 6 = 49 bottles of soda in the morning. They sold 55 + 49 = 104 bottles of soda altogether. They earned a total of 104 x $.50 = $52 in the morning. So, they earned $55 - $52 = $3 more in the evening than in the morning.
The answer: 3
Reverse engineering the question: Remy sold 55 bottles of soda in the morning. Nick sold six fewer bottles of soda than Remy. The price per bottle is $.50. If their total evening sales are $55, how much more did they earn in the evening than in the morning?

Pauline planted in total 3 * 5 = 15 tomatoes. Pauline also planted 5 * 4 = 20 cucumbers. In total Pauline planted 15 + 20 + 30 = 65 different vegetables. The whole garden can be filled up with 10 * 15 = 150 different vegetables. So Pauline could plant 150 - 65 = 85 more vegetables in her garden.
The answer: 85
Reverse engineering the question: Pauline has a garden with vegetables. In it, Pauline has planted 3 kinds of tomatoes - 5 of each kind, 5 kinds of cucumbers - 4 of each kind, and 30 potatoes. In the whole garden, there are 10 rows with 15 spaces in each to plant any vegetable. How many more vegetables could Pauline plant in her garden?

After the first evaporation, the water tank has 6000 liters - 2000 liters = 4000 liters. After the second extraction, the water tank has 4000 liters - 3500 liters = 500 liters. The tank is refilled with rain 30 minutes / 10 minutes = 3 times. The amount of water refilled with rain is 3 times * 350 liters per time = 1050 liters. With the additional rainwater, the water tank has 500 liters + 1050 liters = 1550 liters.
The answer: 1550
Reverse engineering the question: A tank contains 6000 liters of water, 2000 liters evaporated, and then 3500 liters were drained by Bob. How many liters are in the tank if it now rains for 30 minutes and every 10 minutes 350 liters of rain are added to the tank?

On days one, two, and three he sold 5 cars each day so, 5 cars + 5 cars + 5 cars = 15 cars that he sold on those days. On days 4,5,6 and 7 he sold 3 cars each day so, 3 cars + 3 cars + 3 cars + 3 cars = 12 cars that he sold on those days. Now we combine the cars he has already sold, which is 15 cars, and 12 cars, so 15 cars + 12 cars = 27 cars are sold in total. If he needs to sell 50 cars and has already sold 27 cars then 50 cars - 27 cars = 23 cars left to sell to meet his quota.
The answer: 23
Reverse engineering the question:
Frank needs to meet a quota at work for his sales. It’s the beginning of the month and in 30 days he needs to have 50 cars sold. The first three days he sold 5 cars each day. Then the next 4 days he sold 3 cars each day. If the month is 30 days long how many cars does he need to sell for the remaining days to meet his quota?