Audrey is 7 years older than Heracles. In 3 years, Audrey will be twice as old as Heracles is now. How old is Heracles now?

Since Audrey is older than Heracles by 7 years, in 3 years he will be 10 years older than Heracles' current age

In 3 years he will be double Heracles' current age 10 * 2 =

<<10*2=20>>20 Heracles is <<10=10>>10 #### 10 James is sitting outside, counting how many people go past him in vehicles. He has counted 52 vehicles so far today. He saw 12 trucks, a couple of buses, twice as many taxis, some motorbikes, and 30 cars. If the trucks held 2 people each, the buses held 15 people each, the taxis held 2 people each, the motorbikes held 1 person each, and the cars held 3 people each, how many passengers has James seen today? In the trucks, James saw 12 * 2 = <<12*2=24>>24 people. In the buses, he saw 2 * 15 = <<2*15=30>>30 people. He saw 2 * 2 = <<2*2=4>>4 taxis go past him. Therefore, he saw 4 * 2 = <<4*2=8>>8 people in the taxis. In the cars, he saw 30 * 3 = <<30*3=90>>90 people. Since we know how many vehicles James saw in total, we know that he saw 52 – 12 – 2 – 4 – 30 = <<52-12-2-4-30=4>>4 motorbikes. So, he saw 4 * 1 = <<4*1=4>>4 people on motorbikes. He has therefore seen a total of 24 + 30 + 8 + 90 + 4 = <<24+30+8+90+4=156>>156 people. #### 156 A married couple opened a savings account. The wife committed to saving $100 every week while the husband committed to saving $225 every month. After 4 months of savings, they decided to invest half of their money in buying stocks. Each share of stocks costs $50. How many shares of stocks can they buy? The wife saves $100/week x 4 weeks/month = $400 a month. Together, the wife and husband save $400/month + $225/month = $<<400+225=625>>625/month. In 4 months, their total savings is $625/month x 4 months = $<<625*4=2500>>2500. They are going to invest $2500 / 2 = $<<2500/2=1250>>1250. So, they can buy $1250 / $50/share = <<1250/50=25>>25 shares of stocks. #### 25 Jerry, Gabriel, and Jaxon ask their parents to buy them toys to play with. Jerry is bought 8 more toys than Gabriel, but Gabriel has twice as many toys as Jaxon. If Jaxon got 15 toys, what's the total number of toys they all have? Jaxon has <<15=15>>15 toys Gabriel has twice Jaxon's, Gabriel got 2*15 = <<2*15=30>>30 toys. Jerry got 8 more toys than Gabriel, which is 30 +8 = <<30+8=38>>38 toys Jaxon's toys plus Gabriel's toys plus Jerry's toys is 15+30+38 = <<15+30+38=83>>83 toys #### 83 There were 200 students on a field playing football. Suddenly a military plane flew by, and 3/4 of the students looked up. How many eyes saw the airplane? If there were 200 students on the field and 3/4 of the students looked up at the flying plane, 3/4*200 = <<3/4*200=150>>150 students saw the plane. Since each student has two eyes, the number of eyes that looked at the plane is 2*150 = <<2*150=300>>300 years. #### 300 A trader has 55 bags of rice in stock. She sells off some bags of rice and restocks 132 bags of rice. How many bags of rice did she sell if she now has 164 bags of rice? She had 55 bags and restocked 132 after selling some, so if she had not sold any, she would have a total of 55+132 = <<55+132=187>>187 bags However she now has 164 bags, so she must have sold off 187-164 = <<187-164=23>>23 bags #### 23 Candy baked four trays with 24 cookies in each tray. She then divided the cookies equally into eight packs. How many cookies did Candy place in each pack? Cand baked a total of 4 x 24 = <<4*24=96>>96 cookies. Therefore, Candy placed 96/8 = <<96/8=12>>12 cookies in each pack. #### 12 Lori owns a carsharing company. There are three red cars and two white cars available to rent. Renting the white car costs $2 for every minute and the red car $3 for every minute. All cars were rented for 3 hours. How much money did Lori earn? Both white cars were rented for 2 * 2 = $<<2*2=4>>4 for every minute. All three red cars were rented for 3 * 3 = $<<3*3=9>>9 for every minute. So all Lori's cars were rented for 4 + 9 = $<<4+9=13>>13 for every minute. Three hours are 180 minutes, so Lori earned 13 * 180 = $<<13*180=2340>>2340 for renting all the cars. #### 2340 Heaven and her younger brother want to buy school supplies, so they ask their father for money, who gives them $100 in total to use. Heaven buys two sharpeners and four notebooks at $5 each, and her brother uses the remaining amount to buy ten erasers at $4 each and some highlighters. How much money did Heaven's brother spend on highlighters? Heaven spent 2*5=$<<2*5=10>>10 on sharpeners. She also spent 4*5 = $<<4*5=20>>20 on notebooks. Heaven's brother used 10*4 = $<<10*4=40>>40 to buy erasers. The total amount of money Heaven and her sister spent on sharpeners, notebooks, and erasers is 40+20+10 = $<<40+20+10=70>>70 The total amount of money her brother spent on highlighters is 100-70 =$<<100-70=30>>30 #### 30 Rose is an aspiring artist. She wants a paintbrush that costs $2.40, a set of paints that costs $9.20, and an easel that costs $6.50 so she can do some paintings. Rose already has $7.10. How much more money does Rose need? The total cost of the paintbrush, the paints, and the easel was $2.40 + $9.20 + $6.50 = $<<2.4+9.2+6.5=18.10>>18.10. Rose needs $18.10 - $7.10 = $<<18.10-7.10=11>>11 more. #### 11