Q: Bill and Phil are firehouse Dalmatians. Bill has one less than twice as many spots as Phil. If they have 59 spots combined, how many spots does Bill have?
A: If b is the number of spots Bill has and p is the number of spots Phil has, we know that b + p = 59. We also know that b = 2p - 1. We can substitute the second equation into the first equation to get: 2p - 1 + p = 59. Combining like terms, we get 3p - 1 = 59. Adding 1 to both sides, we get 3p = 60. Dividing both sides by 3, we get p = 20. Substituting this back into the equation b = 2p - 1, we get b = 2 * 20 - 1 = 40 - 1 = 39. The answer is 39.
Question: Raul had $87 to spare so he decided to go to the bookshop. Raul bought 8 comics, each of which cost $4. How much money does Raul have left?
Answer: He spent 8 comics × $4 / comic = $32 on comics. Raul has $87 - $32 = $55 left. The answer is 55.
[Question]The chef has 60 eggs. He puts 10 eggs in the fridge and uses the rest to make cakes. If he used 5 eggs to make one cake, how many cakes did the chef make?
[Answer]After putting 10 eggs in the fridge, the chef has 60 - 10 = 50 eggs left to make cakes. Since it takes 5 eggs to make one cake, the chef can make 50 eggs ÷ 5 eggs per cake = 10 cakes. The answer is 10.
Q: On the night of the dance, 400 students show up to the party. 70% of the students who showed up were invited. If 40% of those invited to the party had their invitation revoked and were not allowed into the party, how many invited students attended the party?
A: On the night of the dance 70 / 100 * 400 = 280 students who showed up to the party were invited. If 40% of those invited to the party had their invitation revoked, there were 40 / 100 * 280 = 112 students who showed up and had their invitation revoked. The number of invited students who attended the party is 280 - 112 = 168. The answer is 168.
Question: A garden store sells packages of pumpkin seeds for $2.50, tomato seeds for $1.50, and chili pepper seeds for $0.90. Harry is planning to plant three different types of vegetables on his farm. How much will Harry have to spend if he wants to buy three packets of pumpkin seeds, four packets of tomato seeds, and five packets of chili pepper seeds?
Answer: The cost of three packets of pumpkin seeds is 3 x $2.50 = $7.50. The cost of four packets of tomato seeds is 4 x $1.50 = $6. And, the cost of five packets of chili pepper seeds is 5 x $0.90 = $4.50.                                 Therefore, Harry will spend $7.50 + $6 + $4.50 = $18. The answer is 18.
Q: If Jason eats three potatoes in 20 minutes, how long, in hours, would it take for him to eat all 27 potatoes cooked by his wife?
A:
Since 1 hour is 60 minutes, 20 minutes is 20 / 60 = 1 / 3 of an hour. Eating 3 potatoes per 20 minutes is 3 / (1 / 3) = 9 potatoes per hour. At 9 potatoes per hour, it will take Jason 27 / 9 = 3 hours to eat all of the potatoes. The answer is 3.