[Question]Louise is baking cakes for a gathering. She needs 60 cakes in total, and has already produced half this many. Today, she calculates how many cakes she has left to make and bakes half this amount. The next day, she again calculates how many cakes she has left to make and bakes a third of this amount. How many more cakes does Louise need to bake?
[Answer]Louise has already produced 60 cakes / 2 = 30 cakes. After calculating how many cakes are left, she bakes another 30 cakes / 2 = 15 cakes. The next day, she calculates again then bakes another 15 cakes / 3 = 5 cakes. She therefore still needs to bake 60 – 30 – 15 – 5 = 10 cakes. The answer is 10.
Q: Billy has $25 less than twice the money Sam has. If Sam has $75, how much money do they have together?
A: Billy has $25 less than twice Sam's money, or 2 * $75 - $25 = $150 - $25 = $125. Together they have $75 + $125 = $200. The answer is 200.
Question: A park had 200 visitors last Saturday and 40 more visitors on Sunday than on Saturday. Calculate the total number of people in the park over the two days.
Answer: If on Sunday 40 more people were present at the park than on Saturday, there were 200 + 40 = 240 people on Sunday. The total number of people at the park over the two days is 240 + 200 = 440. The answer is 440.
[Question]A giant spider is discovered. It weighs 2.5 times the previous largest spider, which weighed 6.4 ounces. Each of its legs has a cross-sectional area of .5 square inches. How much pressure in ounces per square inch does each leg undergo?
[Answer]The spider weighs 6.4 * 2.5 = 16 ounces. So each leg supports a weight of 16 / 8 = 2 ounces. That means each leg undergoes a pressure of 2 / .5 = 4 ounces per square inch. The answer is 4.
Q: John plays a game for 4 hours a day every day for 2 weeks. After all that time, he is only 40% done. He increased his playtime to 7 hours a day. How long until he finishes the game?
A: There are 7 * 2 = 14 days in two weeks. So he played 14 * 4 = 56 hours. That means the total length of the game is 56 / .4 = 140 hours. So he has 140 - 56 = 84 hours to beat the game. So it will take him 84 / 7 = 12 days to beat the game. The answer is 12.
Question: Jack has $45 and 36 euros. If each euro is worth two dollars, how much money does he have total in dollars?
Answer:
First find how much the euros are worth in dollars: 36 euros * $2 / euro = $72. Then add that to the amount Jack has in dollars: $72 + $45 = $117. The answer is 117.