We have a question: Nora is selling muffins to raise $120 for an upcoming school trip. She has packaged the muffins in cases. Each case has three packs of muffins. Each pack has four muffins. If she prices each muffin at two dollars, how many cases of muffins must she sell to raise enough money for the trip?
And an answer: 5
So how you got the answer?
If Nora prices each muffin at two dollars, she will sell 1 pack for 2 * 4 = 8 dollars. Since there are 3 packs to a case, the case will be sold for 3 * 8 = 24 dollars. It therefore means that she needs to sell 120 / 24 = 5 cases of muffins.

We have a question: Olivia gave William 10 napkins. Amelia also gives William twice the number of napkins Olivia gave him. If William had 15 napkins before, how many napkins does he have now?
And an answer: 45
So how you got the answer?
After Olivia gave William 10 napkins, he ends up with 15 + 10 = 25 napkins. Amelia gives William twice the number of napkins given to him by Amelia which is 2 * 10 = 20 napkins. The total number of napkins William has now is 20 + 25 = 45 napkins.

We have a question: A man decides to try and do everything off his bucket list while he is still young and fit enough to finish it all. One of his goals was to climb the seven summits. He realizes first he has to get in shape to do it and it takes him 2 years of working out to get healthy enough to take up mountain climbing. He then spends twice that long learning how to be a technically proficient mountain climber. After that he starts with the simplest mountain on the list and climbs them all. He spends 5 months climbing each mountain. After that he takes 13 months learning to dive and dives through all the caves he wants in 2 years. How much time did it take to get through all these goals?
And an answer: 12
So how you got the answer?
He spent 2 * 2 = 4 years learning to climb. He spends 5 * 7 = 35 months climbing all 7 mountains. After a 13 month break, he starts diving so that is 35 + 13 = 48 months. That means it is 48 / 12 = 4 years. So in total it all took 2 + 4 + 4 + 2 = 12 years.