We first need to figure out how many of each type of skeleton there are. Since half the 20 skeletons are adult women, that means there are 20 / 2 = 10 adult women's skeletons. The remaining half, 10, is split between adult men and children, meaning there are 10 / 2 = 5 of each. Since an adult woman has 20 bones in their body, this means that the 10 skeletons have 20 * 10 = 200 bones in total. Since an adult man has 5 more bones in their body than an adult woman, this means they have 20 + 5 = 25 bones in their body. There are 5 adult men, meaning there are 25 * 5 = 125 bones in the adult male skeletons in total. Since a child has half as many bones as the 20 in an adult woman, this means the children have 20 / 2 = 10 bones in their body. Since there are 5 children, this means there are 5 * 10 = 50 bones in the children's skeletons in total. Therefore, altogether there are 50 + 125 + 200 = 375 bones in total in the graveyard.
The answer: 375
Reverse engineering the question: In a graveyard, there are 20 skeletons. Half of these skeletons are adult women, and the remaining number are split evenly between adult men and children. If an adult woman has 20 bones in their body, and a male has 5 more than this, and a child has half as many as an adult woman, how many bones are in the graveyard?


Reasoning and answer: There are 25 - 5 = 20 layers of rock that are not limestone. Half of those 20 are sandstone, so there are 20 / 2 = 10 that are not limestone or sandstone. Four of those are quartz, so 10 - 4 = 6 layers are not limestone, sandstone, or quartz. Half of the rest are shale, so 6 / 2 = 3 kinds of rock remain that make up only one layer in the strata.
The answer: 3
What was the question?
Question: There are 25 different layers of rock in a canyon’s strata. Five of the layers are limestone. Half of the rest are sandstone. Four of the remaining are quartz. Half of the rest are shale. The rest are all different kinds of rock. How many kinds of rock make up only one layer in the canyon’s strata?


Roy is 36 inches tall. Joe is 3 + 36 = 39 inches tall. Sara is 6 + 39 = 45 inches tall.
The answer: 45
Reverse engineering the question: Sara is 6 inches taller than her brother Joe. Joe is 3 inches taller than his friend Roy. If Roy is 36 inches tall, how tall is Sara?


Reasoning and answer: The cost of the movie online was twice what Mike paid, so 2 * 5 = $10. The shopping costs were standing at 80 / 100 * 10 = $8. So in total Steve paid 10 + 8 = $18.
The answer: 18
What was the question?
Question: Mike bought a DVD of his favorite movie. He paid $5 for it at the store. A friend of Mike's, Steve, saw this and also decided to buy a DVD of the movie, but it was already sold out. He needed to order it online, which cost him twice as much. And in addition, he needed to pay the shipping costs which were 80% of the price of the film he ordered. How much did Steve pay to get the DVD in total?


Lilia earned 10 x $2 = $20 for selling the peaches to her friends. She also earned 4 x $1.25 = $5 for selling the peaches to her relatives. Therefore, Lilia earned $20 + $5 = $25 for selling 14 peaches.
The answer: 25
Reverse engineering the question: Lilia has 15 peaches. She sold 10 peaches to her friends for $2 each, while 4 other peaches were sold to her relatives for $1.25 each, and she left the other one for herself. How much did she earn after selling 14 peaches?


There are 3 families of 4 meaning there are 3 * 4 = 12 people in the vacation rental. They all use 1 oversized beach towel a day so they use 1 * 12 = 12 towels a day. They use 12 towels a day for 7 days so in one week they use 12 * 7 = 84 beach towels. The washing machine can only hold 14 towels and they have 84 towels to wash which means there are 84 / 14 = 6 loads of laundry.
The answer: 6
Reverse engineering the question:
3 families of 4 people shared a vacation rental for 7 days. Everyone uses 1 oversized beach towel a day before getting a new one. The washing machine can hold 14 oversized beach towels per load. How many loads of laundry will it take to wash all the oversized beach towels?