The cost of filling a car fuel tank is $45, and this can take you 500 miles before refilling. Mallory was going to her grammy's house, 2000 miles away. If she used 3/5 times as much money on food as she spent on filling the car fuel tank for the whole journey, calculate the total amount of money she used. Give the rationale and then the answer.
Let's think step by step. If Mallory gammy's house is 2000 miles away and she has to refill the fuel tank every 500 miles, she filled the tank 2000 / 500 = 4 times. If each refill costs $45, the total amount of money she used on refilling the tank is $45 * 4 = $180. The food cost was 3 / 5 times as much as the fuel costs, which is 3 / 5 * $180 = $108. On the whole journey, Mallory expenses on fuel and food costs are $108 + $180 = $288.. The answer is: 288.

A woodworker is crafting enough furniture legs for their projects. They have made a total of 40 furniture legs so far, and this is the exact amount they needed for everything they're building. If the woodworker is using these legs for their tables and chairs and they have built 6 chairs, how many tables have they made? Give the rationale and then the answer.
Let's think step by step. The chairs need 6 chairs * 4 legs = 24 furniture legs. This means they are using 40 legs in total 24 legs for chairs = 16 legs for the tables. They have therefore made 16 legs / 4 legs per table = 4 tables.. The answer is: 4.

Jillian had 80 oranges which she had bought to give to her friends. She divided each orange into ten equal pieces for each friend to get four pieces. How many friends were there? Give the rationale and then the answer.
Let's think step by step. If she divided each orange into 10 pieces, she got 80 * 10 = 800 pieces of orange. Since each friend received 4 pieces, there were 800 / 4 = 200 friends.. The answer is: 200.