We have a question: There are 3414 yellow balloons and there are 1762 more black balloons than yellow balloons. If the balloons will be evenly divided among 10 schools, how many balloons will one school receive?
And an answer: 859
So how you got the answer?
Black balloons: 3414 + 1762 = 5176. Total balloons: 3414 + 5176 = 8590. 8590 / 10 = 859. Each school will receive 859 balloons.

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.

We have a question: Brian can only hold his breath underwater for 10 seconds. He wants to get better, so he starts practicing. After a week, he's doubled the amount of time he can do it. After another week, he's doubled it again from the previous week. The final week, he's increased it by 50% from the previous week. How long can Brian hold his breath for now?
And an answer: 60
So how you got the answer?
At the end of his first week, Brian now has doubled his initial time of 10 seconds to 10 * 2 = 20 seconds. At the end of his second week, Brian doubled the previous week's time of 20 seconds to 20 * 2 = 40 seconds. At the end of his third week of practice, Brian adds another 50% of 40 seconds to his time so 40 * .5 = 20 seconds added. Having added 20 seconds to his time from his second week, Brian can now hold his breath for 40 + 20 = 60 seconds.