Eustace is twice as old as Milford. In 3 years, he will be 39. How old will Milford be?

How old is Eustace? ** Eustace’s current age must be 39 years old – 3 years =

<<39-3=36>>36 years old. How old is Milford? ** So Milford’s current age must be 36 years old / 2 = <<36/2=18>>18 years old. How old will Milford be? ** So in 3 years, Milford will be 18 years old + 3 years = <<18+3=21>>21 years old. #### 21 Three adults whose average weight is 140 pounds went first in the elevator. Two children whose average weight is 64 pounds also went inside. If an elevator sign reads “Maximum weight 600 pounds.", what is the maximum weight of the next person to get in the elevator so that it will not be overloaded? How much does the three adults weigh? ** The sum of the weights of the three adults is 140 x 3 = <<140*3=420>>420 pounds. How much do the two children weigh? ** The sum of the weight of the two children is 64 x 2 = <<64*2=128>>128 pounds. What is the total weight of the 5 people in the elevator? ** So the total weight of the 5 people who are in the elevator is 420 + 128 = <<420+128=548>>548 pounds. What is the maximum weight of the next person to get in the elevator so that it will not be overloaded? ** This would mean that the next person's weight must not exceed 600 - 548 = <<600-548=52>>52 pounds. #### 52 Frank needs to meet a quota at work for his sales. It’s the beginning of the month and in 30 days he needs to have 50 cars sold. The first three days he sold 5 cars each day. Then the next 4 days he sold 3 cars each day. If the month is 30 days long how many cars does he need to sell for the remaining days to meet his quota? How many cars did Frank sell on days 1, 2, and 3? ** On days one, two, and three he sold 5 cars each day so, 5 cars + 5 cars + 5 cars = <<5+5+5=15>>15 cars that he sold on those days. How many cars did Frank sell on days 4, 5, 6 and 7? ** On days 4,5,6 and 7 he sold 3 cars each day so, 3 cars + 3 cars + 3 cars + 3 cars = <<3+3+3+3=12>>12 cars that he sold on those days. How many cars did Frank sell in total? ** Now we combine the cars he has already sold, which is 15 cars, and 12 cars, so 15 cars + 12 cars = <<15+12=27>>27 cars are sold in total. How many cars does Frank need to sell? ** If he needs to sell 50 cars and has already sold 27 cars then 50 cars - 27 cars = <<50-27=23>>23 cars left to sell to meet his quota. #### 23 Mark wants to set the record for most consecutive ropes jumped. The record is 54,000. He can jump 3 times a second. How many hours would he need to jump rope? How many times can Mark jump in a minute? ** He can jump 3*60=<<3*60=180>>180 times per minute How many times can Mark jump in an hour? ** So he can jump 180*60=<<180*60=10800>>10,800 per hour How many hours would it take him to jump 54,000? ** So it would take him 54,000/10,800=<<54000/10800=5>>5 hours #### 5 Max has 8 children and each of his children has the same number of children as he does except for 2 who have 5 children each. How many grandchildren does he have? How many children does Max have? ** Out of his 8 children, 2 have only 5 children so the rest who have 8 ( the same number as him) are 8-2 = <<8-2=6>>6 How many grandchildren does Max have? ** 6 of Max's children have 8 children each for a total of 6*8 = <<6*8=48>>48 grandchildren How many grandchildren does Max have? ** 2 of Max's children have 5 children each for a total of 5*2 = <<5*2=10>>10 grandchildren How many grandchildren does Max have? ** In total he has 48+10 = <<48+10=58>>58 grandchildren #### 58 Uncle Jude baked 256 cookies. He gave 15 cookies to Tim, 23 cookies to Mike, kept some in the fridge and gave the rest to Anna. How many cookies did he put in the fridge if he gave twice as many cookies as he gave Tim to Anna? How many cookies did Uncle Jude give to Anna? ** He gave twice 15 cookies to Anna which is 2*15 = <<2*15=30>>30 cookies How many cookies did Uncle Jude give out? ** He gave out a total of 15+23+30 = <<15+23+30=68>>68 cookies How many cookies did Uncle Jude put in the fridge? ** The remainder in the fridge is 256-68 = <<256-68=188>>188 cookies #### 188 Ryan has 40 balls. There are twice as many red balls as blue while the rest are green. If there are 11 blue balls, how many green balls are there? How many red balls are there? ** There are 11 blue x 2 red/blue = <<11*2=22>>22 red balls. How many balls are there? ** The total number of blue and red balls is 11 blue + 22 red = <<11+22=33>>33 balls How many green balls are there? ** There are 40 balls - 33 balls = <<40-33=7>>7 green balls. #### 7 John drinks 2 energy drinks. 1 of them is a 12-ounce drink with 250 grams of caffeine. The second drink is 3 times more caffeinated per ounce but only 2 ounces. He then takes a caffeine pill that has as much caffeine as his 2 drinks combined. How much caffeine did he consume? How many ounces was the second drink? ** The second drink was 2/12=1/6 the size of the first drink How many grams of caffeine was the second drink? ** So it had 1/6*3=1/2 the caffeine How many grams of caffeine was the second drink? ** That means it had 1/2*250=<<250/2=125>>125 grams of caffeine How many grams of caffeine did John drink? ** So the total amount of caffeine he drank was 125+250=<<125+250=375>>375 grams How much caffeine did John consume? ** So he consumed 375*2=<<375*2=750>>750 grams of caffeine for the day #### 750 Bert's golden retriever has grown tremendously since it was a puppy. At 7 weeks old, the puppy weighed 6 pounds, but doubled in weight by week 9. It doubled in weight again at 3 months old, and doubled again at 5 months old. Finally, the dog reached its final adult weight by adding another 30 pounds by the time it was one year old. What is the dog's full adult weight, in pounds? How much did the puppy weigh at 7 weeks old? ** At 7 weeks old, the puppy weighed 6 pounds, but doubled in weight by week 9 to reach a weight of 6*2=<<6+6=12>>12 pounds. How much did the puppy weigh at 3 months old? ** It doubled in weight again at 3 months old to reach a weight of 12*2=<<12*2=24>>24 pounds. How much did the puppy weigh at 5 months old? ** It doubled in weight again at 5 months old to reach a weight of 24*2=<<24*2=48>>48 pounds. What is the dog's full adult weight, in pounds? ** And it reached its full adult weight by adding another 30 lbs to reach a final weight of 48+30=78 pounds. #### 78 In mid-May, the river flowing through Moreland is five feet deep. By mid-June, the river is 10 feet deeper than mid-May. By mid-July, the river is three times deeper than mid-June. How many feet deep is the river by mid-July? How deep is the river in mid-June? ** In mid-June, the river is 5+10=<<5+10=15>>15 feet deep. How deep is the river in mid-July? ** In mid-July, the river is 15*3=<<15*3=45>>45 feet deep. #### 45