Question: Gerald brings chocolate bars to school for his class to share. Each bar contains 8 squares. He brings 7 total bars. His teacher says that for every bar he brings, she will bring two more identical ones. There are 24 students in class. How many squares of chocolate does each student get?
Answer: The teacher brings 14 bars to school because 7 x 2 = 14. There are 21 total bars of chocolate because 7 + 14 = 21. There are 168 total squares of chocolate because 21 x 8 = 168. Each student gets 7 squares because 168 / 24 = 7. The answer is 7.
[Question]There are 480 zombies in the shopping mall. If the number of zombies doubled every day, how many days ago were there less than 50 zombies in the mall?
[Answer]First find how many zombies there were one day ago: 480 zombies / 2 = 240 zombies. Then find how many zombies there were two days ago: 240 zombies / 2 = 120 zombies. Then find the number of zombies there were three days ago: 120 zombies / 2 = 60 zombies. Then find the number of zombies there were four days ago: 60 zombies / 2 = 30 zombies, which is less than 50, so there were less than 50 zombies 4 days ago. The answer is 4.
Q: The grocery store sells chips for $2 per packet and corn chips for $1.5 per packet. John would like to buy 15 packets of chips, and with the rest of the money he has left, buy as many packets of corn chips as he can. How many packets of corn chips could John buy if he has $45 for his entire purchase?
A: John wants to buy 15 packets of chips, which will cost him 15 * 2 = $30. So John would have 45 - 30 = $15 left for the corn chips. John could buy for the rest of the money 15 / 1.5 = 10 packets of corn chips. The answer is 10.
Question: Tom can type 90 words a minute. A page is 450 words. How long would it take him to type out 10 pages?
Answer: He can type out 1 page in 450 / 90 = 5 minutes. So it would take 5 * 10 = 50 minutes. The answer is 50.
[Question]Marlon had 42 lollipops in the beginning. On his way home, he saw Emily and gave her 2/3 of his lollipops. Then, Marlon kept 4 lollipops and gave the rest to Lou. How many lollipops did Lou receive?
[Answer]Marlon gave Emily 42 x 2 / 3 = 28 lollipops. So, he only had 42 - 28 = 14 lollipops left. After keeping 4, Marlon gave 14 - 4 = 10 lollipops to Lou. The answer is 10.
[Question]There are 248 pages in a book. Joanna can read 16 pages per hour. On Monday, she reads for 3 hours. On Tuesday, she reads for 6.5 hours. How many more hours does she need to read to finish the book?
[Answer]
On Monday, Joanna reads 3 * 16 = 48 pages. On Tuesday, Joanna reads 6.5 * 16 = 104 pages. So far, she has read 48 + 104 = 152 pages. Thus, she has 248 - 152 = 96 pages left. She will need to read for 96 / 16 = 6 hours to finish the book. The answer is 6.