Question: Peter bought 4 new notebooks for school. 2 of them are green, one is black and the other one is pink. The total cost was $45. If the black notebook cost $15, and the pink one cost $10, how much did the green notebooks cost each?
Answer: The black and pink notebook cost a total of $15 + $10 = $25. The green notebooks cost a total of $45 - $25 = $20. Each green notebook cost $20 / 2 = $10. The answer is 10.
[Question]There were 63 Easter eggs in the yard. Hannah found twice as many as Helen. How many Easter eggs did Hannah find?
[Answer]Hannah found twice as many as Helen, so there are 2 + 1 = 3 units of eggs. There were 63 Easter eggs total and there are 3 units of eggs so 63 / 3 = 21 easter eggs per unit. So if Helen found 21 eggs and Hannah found twice as many, then Hannah found 2 * 21 = 42 Easter eggs. The answer is 42.
Q: Terry's daily income is $24, while Jordan's daily income is $30. Working 7 days a week, how much is the difference between their weekly incomes?
A: Terry's weekly income is $24 x 7 = $168. Jordan's weekly income is $30 x 7 = $210. So, the difference between their weekly income is $210 - $168 = $42. The answer is 42.
Question: Greta received 10 more letters in the mail than her brother. Greta's mother received twice the total number of letters Greta and her brother received. Calculate the total number of letters the three received if Greta's brother received 40 letters.
Answer: Since Greta's brother received 40 letters, Greta received 40 + 10 = 50 letters. Together, Greta and her brother received 50 + 40 = 90 letters. Greta's mother received twice the total number of letters Greta and her brother received, which totals 90 * 2 = 180 letters. In total, the three received 90 + 180 = 270 letters. The answer is 270.
[Question]Jack is stranded on a desert island. He wants some salt to season his fish. He collects 2 liters of seawater in an old bucket. If the water is 20% salt, how many ml of salt will Jack get when all the water evaporates?
[Answer]First find how many liters of the seawater are salt: 2 liters * 20% = .4 liters. Then multiply that amount by 1000 ml / liter to find the number of ml of salt Jack gets: .4 liters * 1000 ml / liter = 400 ml. The answer is 400.
[Question]Caleb, Andy and Billy went on a picnic with their father. Billy took 6 candies with him, Caleb took 11 and Andy left with 9. On the way, their father bought a packet of 36 candies. He gave 8 candies to Billy, 11 to Caleb and the rest to Andy. How many more candies does Andy now have than Caleb?
[Answer]
Billy took some candies and got more from his father for a total of 6 + 8 = 14 candies. Caleb has a total of 11 + 11 = 22 candies. Their father gave out 8 + 11 = 19 candies from a pack of 36. He gave the rest which is 36 - 19 = 17 candies to Andy. Andy has a total of 9 + 17 = 26 candies. Andy has 26 - 22 = 4 more candies than Caleb. The answer is 4.