Question: In the post-apocalyptic wasteland, 1 lizard is worth 8 bottle caps, 3 lizards are worth 5 gallons of water, and 1 horse is worth 80 gallons of water. Marla can scavenge for 20 bottle caps each day, but needs to pay 4 bottle caps per night for food and shelter. How many days does it take Marla to collect all the bottlecaps she needs to buy a horse?
Answer: Step-by-step reasoning process: First find how many lizards you get for one gallon of water: 3 lizards / 5 gallons = .6 lizards / gallon. Then figure out how many lizards 80 gallons of water is worth: 80 gallons * .6 lizards / gallon = 48 lizards. Then figure out how many bottle caps 48 lizards is worth: 48 lizards * 8 bottle caps / lizard = 384 bottle caps. Then figure out how many bottle caps Marla can save each day by subtracting the number she spends from the number she finds: 20 bottlecaps / day - 4 bottlecaps / day = 16 bottlecaps / day. Finally, divide the number of bottle caps Marla needs by the number she saves each day: 384 bottle caps / 16 bottle caps / day = 24 days.
So the answer is 24.

Question: The rate for mowing a lawn is $14 per hour. David mowed for 2 hours a day for a week. He then spent half of the money he made from mowing a lawn on a pair of shoes and gave half of the remaining money to his mom. How much money did he have left?
Answer: Step-by-step reasoning process: David got $14 / hour x 2 hours / day = $28 per day from mowing. So in a week, he had $28 / day x 7 days = $196. A pair of shoes cost $196 / 2 = $98. David gave his mom $98 / 2 = $49. The total amount he spent and gave is $98 + $49 = $147. David is left with $196 - $147 = $49.
So the answer is 49.

Question: At Hank's cafe, he sells big stack pancakes which have 5 pancakes and short stack pancakes which have 3 pancakes. If 9 customers order the short stack and 6 customers order the big stack, how many pancakes does Hank need to make?
Answer: Step-by-step reasoning process: For the short stack orders, Hank needs to make 3 x 9 = 27 pancakes. For the big stack orders, he needs to make 5 x 6 = 30 pancakes. Altogether, Hank needs to make 27 + 30 = 57 pancakes.
So the answer is 57.

Question: A doctor needs to give medicine to a child, and he knows that he cannot give the same amount of medicine that he would give to an adult. The instructions say that for every kilogram of weight the child must be given 5 ml of medicine. The doctor knows that the child weighs 30 kilograms and that also the full dose has to be given in 3 equal parts. How many milligrams will each part of the dose be?
Answer:
Step-by-step reasoning process: The total number of ml needed is 30 kg x 5 ml / kg = 150 ml. Each dose has to be 150 ml / 3 doses = 50 ml / dose.
So the answer is 50.