[Question]Ivar owns a stable. He recently has 3 horses and each horse consumes 5 liters of water for drinking and 2 liters for bathing per day. If he added 5 horses, how many liters of water does Ivar need for all the horses for 28 days?
[Answer]The total horse he owns is 5 + 3 = 8. The total liters of water each horse consumes is 5 + 2 = 7. So, the total water all the horses consume every day is 7 x 8 = 56. And the total of liters of water they consume every week is 56 x 7 = 392. Therefore, the total liters of water they consume for the entire month is 392 x 4 = 1568. The answer is 1568.

[Question]Jackson wants to go on a shopping spree, so his mom says she will give him some spending money if he does extra chores. She promises $5 per hour spent on chores. Jackson spends 2 hours vacuuming, and decides to do this twice. He also spends 0.5 hours washing dishes, and three times as long cleaning the bathroom. How much spending money has Jackson earned?
[Answer]Jackson spent a total of 2 * 2 = 4 hours vacuuming. This means he earned 4 * $5 = 20 dollars from vacuuming. He earned 0.5 * $5 = 2.5 dollars from washing dishes. Cleaning the bathroom took three times as long as the dishes, so he spent 0.5 * 3 = 1.5 hours in the bathroom. This means he earned 1.5 * $5 = $7.5 from cleaning the bathroom. In total, he has earned $20 + $2.5 + $7.5 = $30. The answer is 30.

[Question]John decides to start collecting art. He pays the same price for his first 3 pieces of art and the total price came to $45,000. The next piece of art was 50% more expensive than those. How much did all the art cost?
[Answer]The first 3 pieces each cost 45000 / 3 = $15,000. So the next piece was 15,000 * .5 = $7,500 more expensive. That means it cost 15,000 + 7,500 = $22,500. That means in total he spent 45,000 + 22,500 = $67,500. The answer is 67500.

[Question]In a conference room, 40 chairs with a capacity of 2 people each were arranged in rows in preparation for the board meeting of a company, whose number of members was the same as the chairs' capacity. If 2/5 of the chairs were not occupied, and the rest each had two people, calculate the number of board members who did attend the meeting.
[Answer]
The total capacity of the 40 chairs was 40 * 2 = 80 people. If 2 / 5 of the chairs were unoccupied, 2 / 5 * 80 = 32 people missed the board meeting since the number of members was the same as the chair's capacity. The number of board members who attended the meeting was 80 - 32 = 48. The answer is 48.