Question: Samuel swept the porch and cleared nine-tenths of the dust particles from it. As he walked across the porch afterward, his shoes left 223 dust particles behind. How many dust particles were on the porch before Samuel swept if there were 331 after he walked across it?
Answer: Before Samuel walked across the porch, there were 331 - 223 = 108 dust particles. Those 108 were 1 / 10 of the original amount, so there were 108 * 10 = 1080 dust particles on the porch before Samuel swept. The answer is 1080.
[Question]Henry wants to buy a t-shirt, a pair of jeans and a pair of socks. The jeans are twice the price of the t-shirt, and the t-shirt is $10 more expensive than the socks. The socks cost $5. How much does Henry need to pay for the pair of jeans?
[Answer]The t - shirt costs $10 more than the socks, so it costs $5 + $10 = $15. The jeans are twice the price of the shirt, so they cost 2 * $15 = $30. The answer is 30.
Q: Sam bought a heavy safe with a combination lock. There were four rows with twenty gold bars per row arranged in the safe. If each gold bar is worth $20000, calculate the total worth of the gold bars in the safe.
A: If there were four rows of twenty gold bars arranged in the safe, the total number of bars in the safe is 4 * 20 = 80 bars. Since each gold bar is worth $20000, the 80 bars are worth 80 * $20000 = $1,600,000. The answer is 1600000.
Question: Jimmy bought 3 pens for school for $1 each, 4 notebooks for $3 each and 2 folders for $5 each. If he paid with a $50 bill, how much change will he get back?
Answer: Jimmy spent 3 * $1 = $3 on pens. He spent 4 * $3 = $12 on notebooks. He spent 2 * $5 = $10 on folders. He spent $3 + $12 + $10 = $25 in total. His change will be $50 - $25 = $25. The answer is 25.
[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?
[Answer]Roy is 36 inches tall. Joe is 3 + 36 = 39 inches tall. Sara is 6 + 39 = 45 inches tall. The answer is 45.
[Question]Teddy has 7 dogs and 8 cats. Ben has 9 more dogs than Teddy, and Dave has 13 more cats and 5 less dogs than Teddy. How many pets do all of them have combined?
[Answer]
Teddy has 7 + 8 = 15 pets in total. Ben has 9 + 7 = 16 dogs, which means he has 16 pets in total. Dave has 13 + 8 = 21 cats. Dave has 7 - 5 = 2 dogs. Dave has 21 + 2 = 23 pets in total. Combined, they have 15 + 16 + 23 = 54 pets in total. The answer is 54.