Jamie is a firefighter. One day an emergency call comes in from Mrs. Thompson, an elderly woman whose cat can't get down a 20-foot tree. The last time Jamie rescued a cat, he got it down from a 6-foot tree and had to climb 12 rungs of his ladder. How many rungs does he have to climb this time to get the cat down from the tree?

Jamie needed 12/6 =

<<12/6=2>>2 rungs per foot of the tree to save the first cat. To climb a 20-foot tree, Jamie needs 20*2 = <<20*2=40>>40 rungs #### 40 Sanya can wash 7 bath towels in one wash, which will take 1 hour. She only has 2 hours in a day to do this task. If she has 98 bath towels, how many days will she need to wash all of them? Every day, Sanya can wash 7 x 2 = <<7*2=14>>14 bath towels. To wash all the towels, she will need 98 / 14 = <<98/14=7>>7 days. #### 7 Ten more than twice the number of birds on the fence is 50. How many birds are on the fence? Let x be the number of birds on the fence. We know that 10 + 2*x = 50. Subtracting 10 from both sides, we get 2*x = 50 - 10 = 40 Dividing both sides by 2, we get x = 20 #### 20 Toby has 63 photos on his camera roll. He deletes seven bad shots, takes fifteen pictures of his cat, and then does a photo shoot with his friends. After editing the photos with his friends, he decides to delete three of them. His camera roll has 84 photos in the end. How many photos did Toby take in the photo shoot? Let P be the number of photos in the photo shoot. After Toby deleted 7 shots, he had 63 - 7 = <<63-7=56>>56 photos. After taking 15 cat pictures, he had 56 + 15 = <<56+15=71>>71 photos. After the photo shoot, he had 71 + P photos. After deleting 3 photos, he had 71 + P - 3 = <<71+-3=68>>68 + P photos. He had 68 + P = 84 photos in the end. Thus, Toby took P = 84 - 68 = <<84-68=16>>16 photos in the photo shoot. #### 16 In a classroom of 81 students, two-thirds are wearing striped shirts while the others are wearing checkered shirts. If there are 19 more students wearing shorts than checkered shirts, how many more students are wearing striped shirts than shorts? 81/3 = <<81/3=27>>27 students are wearing checkered shirts. 27 x 2 = <<27*2=54>>54 students are wearing striped shirts. 27 + 19 = <<27+19=46>>46 students are wearing shorts. 54 - 46 = <<54-46=8>>8 more students are wearing striped shirts than shorts. #### 8 A teacher has to order supplies for his class to do a science project. Each student needs a bow, a small bottle of vinegar and a box of baking soda. Bows are $5 each, a bottle of vinegar is $2 and a box of baking soda is $1. The teacher has 23 students in this class. How much will the supplies cost? The supplies for every student will cost 5 + 2 + 1 = $<<5+2+1=8>>8. The supplies for the whole class will cost 8 * 23 = $<<8*23=184>>184 in total. #### 184 Balki is counting the number of raisins in boxes of cereal. He counted 437 total raisins in 5 boxes. In one box he counted 72 raisins. In a second box he counted 74 raisins. The other three boxes had the same number each. How many were in each of the other three boxes? Let x = the number of raisins in each of the other 3 boxes. Then 72 + 74 + 3x = 437 raisins Combining like terms we get 146 + 3x = 437 raisins Subtracting 146 from both sides we get 3x = 291 raisins Dividing both sides by 3, we get x = 291 / 3 = 97 raisins #### 97 A colony of bees can contain up to 80000 individuals. In winter they are more exposed to death, and if the winter is really cold the bees can begin to die slowly. If the colony starts to lose 1200 bees per day, how many days will pass until the number of bees in the colony reaches a fourth of its initial number? A fourth of the initial number of bees is 80000 bees / 4 = <<80000/4=20000>>20000 bees The number of bees that has to die is 80000 bees – 20000 bees = <<80000-20000=60000>>60000 bees For the colony to reach a fourth of its population, 60000 bees ÷ 1200 bees/day = <<60000/1200=50>>50 days have to pass. #### 50 Robert, a sales agent, earns a basic salary of $1250 per month and, 10% commission on his monthly sales. Last month, his total sales were $23600. He allocated 20% of his total earnings to savings and the rest of the money to his monthly expenses. How much were his monthly expenses last month? Robert earned a commission of $23600 x 10/100 = $<<23600*10/100=2360>>2360. So, he earned a total of $1250 + $2360 = $<<1250+2360=3610>>3610. And, he saved $3610 x 20/100 = $<<3610*20/100=722>>722. Therefore, his total expenses last month was $3610 - $722= $<<3610-722=2888>>2888 #### 2888 There are 3 workers producing chairs in a furniture factory. Each of them produces 4 chairs an hour. As a group, they produce an additional chair every 6 hours. In total, how many chairs have been produced after 6 hours? The workers produce a combined total of 3 workers * 4 hours = <<3*4=12>>12 chairs every hour. After 6 hours, they have therefore produced 12 * 6 = <<12*6=72>>72 chairs. Adding the additional chair means the total amount of chairs produced is 72 + 1 = <<72+1=73>>73 chairs. #### 73