A 26-mile circular marathon has four checkpoints inside it. The first is one mile from the start line, and the last checkpoint is one mile from the finish line. The checkpoints have equal spacing between them. How many miles apart are each of the consecutive checkpoints between the start-finish line?
Let's think: The checkpoints are 1 mile from the start and finish, so they are spaced along 26 - 1 - 1 = 24 miles. There are 4 equally spaced checkpoints, so the checkpoints are 24 / 4 = 6 miles apart.. The answer is: 6.

Amelia has laundry to do. She has a load of whites that will take 72 minutes in the washing machine and 50 minutes in the dryer. She has a load of darks that will take 58 minutes in the washing machine and 65 minutes in the dryer. She has a load of colors that will take 45 minutes in the washer and 54 minutes in the dryer. If she does one load at a time, how long will it take her to wash and dry all three loads, in minutes?
Let's think: It will take her 72 minutes in the washer + 50 minutes in the dryer = 122 minutes for the whites. It will take her 58 minutes in the washer + 65 minutes in the dryer = 123 minutes for the darks. It will take her 45 minutes in the washer + 54 minutes in the dryer = 99 minutes for the colors. Altogether, it will take 122 minutes for whites + 123 minutes for darks + 99 minutes for colors = 344 minutes to do the laundry.. The answer is: 344.

Jenna is making a costume for her role in Oliver Twist. She needs to make an overskirt and two petticoats. Each skirt uses a rectangle of material that measures 12 feet by 4 feet. She also needs to make a bodice that uses 2 square feet of material for the shirt and 5 square feet of fabric for each of the sleeves. If the material she uses costs $3 per square foot, how much does she spend on the material in total?
Let's think: First find the amount of material needed for one skirt: 12 feet * 4 feet = 48 square feet. Then multiply that number by the number of skirts to find the total material used on the skirts: 48 square feet / skirt * 3 skirts = 144 square feet. Then find the total amount of material she uses for the sleeves: 5 square feet / sleeve * 2 sleeves = 10 square feet. Then add the amount of material she uses for each part of the dress to find the total amount of material: 10 square feet + 144 square feet + 2 square feet = 156 square feet. Then multiply the total amount of material by the cost per square foot to find the total cost: 156 square feet * $3 / square foot = $468.. The answer is: 468.

If olivine has 5 more precious stones than agate and diamond has 11 more precious stones than olivine, how many precious stones do they have together if agate has 30 precious stones?
Let's think:
Since Agate has 30 precious stones and Olivine has 5 more precious stones, then Olivine has 30 + 5 = 35 precious stones. The total number of stones Olivine and Agate has is 35 + 30 = 65. Diamond has 11 more precious stones than Olivine, who has 35 stones, meaning Diamond has 35 + 11 = 46 precious stones. In total, they all have 65 + 46 = 111 precious stones.. The answer is: 111.