Sheila, Purity, and Rose want to rent a house. Sheila has offered to pay five times Purity’s share of the rent. Rose can only afford thrice what Purity pays. If Rose’s share is $1,800, what is the total house rent? Give the rationale and then the answer.
Let's think step by step. Purity will pay a third of Rose's share, which translates to 1800 / 3 = 600 dollars. Sheila has offered to pay 5 * 600 = 3000 dollars. Combining everyone’s share of the rent will give a total of 600 + 3000 + 1800 = 5400 dollars.. The answer is: 5400.

A library has a number of books. 35% of them are intended for children and 104 of them are for adults. How many books are in the library? Give the rationale and then the answer.
Let's think step by step. 65% of the library books are for adults because 100 - 35 = 65. There are 160 library books in total because 104 / .65 = 160.. The answer is: 160.

To make pizza, together with other ingredients, Kimber needs 10 cups of water, 16 cups of flour, and 1/2 times as many teaspoons of salt as the number of cups of flour. Calculate the combined total number of cups of water, flour, and teaspoons of salt that she needs to make the pizza. Give the rationale and then the answer.
Let's think step by step. To make the pizza, Kimber half as many teaspoons of salt as the number of cups of flour, meaning she needs 1 / 2 * 16 = 8 teaspoons of salt. The total number of cups of flour and teaspoons of salt she needs is 8 + 16 = 24. She also needs 10 cups of water, which means the total number of cups of water and flour and teaspoons of salt she needs is 24 + 10 = 34.. The answer is: 34.