Marco owns an ice cream truck. His ice cream cones are $5 each. If his expenses are 80% of total sales for the day, how many ice cream cones would he need to sell to make a $200 profit for the day?

His expenses are 80/100 = 4/5.

His profit would be 20/100 = 1/5.

Total sales for the day is $200 x 5 = $

<<200*5=1000>>1000. Total ice cream cones he sells is $1000 / 5 = <<1000/5=200>>200. #### 200 Gabby planted a watermelon vine, a peach tree, and two plum trees in the spring. Over the summer, the plants grew and produced fruit. She only got one watermelon to grow, but she got twelve more peaches than that, and three times that number of plums. How many pieces of fruit did Gabby get to pick that summer? Gabby’s peach tree grew 12 + 1 = <<12+1=13>>13 peaches. Her plum trees grew 13 * 3 = <<13*3=39>>39 plums. Thus, Gabby got 1 + 13 + 39 = <<1+13+39=53>>53 pieces of fruit to pick. #### 53 For a school fundraiser, Tory needs to sell 50 packs of cookies. So far, he has sold 12 packs to his grandmother, 7 packs to his uncle, and 5 packs to a neighbor. How many more packs of cookies does Tory need to sell? Tory sold 12 packs + 7 packs = <<12+7=19>>19 packs to his family members. Tory sold 19 packs + 5 packs = <<19+5=24>>24 packs in total He has to sell 50 packs - 24 packs = <<50-24=26>>26 more packs of cookies to reach his target #### 26 If Beth had $35 more, she would have $105. If Jan had $10 less, he would have the same money as Beth has. How much money do Beth and Jan have altogether? Beth has $105 - $35 = $<<105-35=70>>70. Jan has $70 + $10 = $<<70+10=80>>80. So, Beth and Jan have $70 + $80 = $<<70+80=150>>150 altogether. #### 150 Bob's school track is 400 meters. If Bob ran the first lap in 70 seconds, the second and third lap in 85 seconds each, what was his average speed in (m/s) for his entire run? If each lap is 400 meters long, then 3 laps will have a total distance of 400*3 = <<400*3=1200>>1200 meters The total time he ran was 70 on the first lap + 85 on the second one and 85 on the third lap, so his total running time was = 70+85+85 = <<70+85+85=240>>240 seconds His average speed then is measured by the total distance he ran (1200) divided by the total time required (240) or 1200/240 = <<1200/240=5>>5 m/s #### 5 A snack machine accepts only quarters. Candy bars cost ¢25, each piece of chocolate costs ¢75, and a pack of juice costs ¢50. How many quarters are needed to buy three candy bars, two pieces of chocolate, and one pack of juice? Three candy bars cost ¢25 x 3 = ¢<<25*3=75>>75. Two pieces of chocolate cost ¢75 x 2 = ¢<<75*2=150>>150. So, the total amount needed to buy those is ¢75 + ¢150 + ¢50 = ¢<<75+150+50=275>>275. Since a quarter is equal to ¢25, therefore ¢275/¢25 = <<275/25=11>>11 quarters are needed. #### 11 Jordan's dog, Max, was born on the same day that Luka turned 4 years old. Luka is exactly 2 years older than is Aubrey. On Aubrey's 8th birthday, how many years old was Jordan's dog, Max? If Luka is exactly 2 years older than is Aubrey, then on Aubrey's 8th birthday, Luka was 8+2=10 years old. If Jordan's dog, Max, was born on the same day that Luka turned 4 years old, then when Luka was 10 years old, Max was 10-4=<<10-4=6>>6 years old. #### 6 Every bedtime, Juwella reads a book. Three nights ago, she read 15 pages. Two nights ago she read twice that many pages, while last night she read 5 pages more than the previous night. She promised to read the remaining pages of the book tonight. If the book has 100 pages, how many pages will she read tonight? Juwella read 15 x 2 = <<15*2=30>>30 pages two nights ago. She read 30 + 5 = <<30+5=35>>35 pages last night. She read a total of 15 + 30 + 35 = <<15+30+35=80>>80 pages for three nights. Thus, she needs to read 100 - 80 = <<100-80=20>>20 pages tonight to finish the book. #### 20 Anderson makes mud masks for spa treatments. In every batch of mud that he mixes, he adds three sprigs of mint, and he adds two green tea leaves for every sprig of mint. He had to switch to a different kind of mud, which makes the other ingredients he adds half as effective. How many green tea leaves should Anderson add to a new batch of mud to get the same efficacy as before? Anderson adds 3 * 2 = <<3*2=6>>6 green tea leaves in every batch of mud. They are half as effective in the new mud, so Anderson should ad 6 * 2 = <<6*2=12>>12 green tea leaves to get the same efficacy as before. #### 12 An ice cream vendor has 50 chocolate-flavored ice creams and 54 mango-flavored ice creams in his cart. If he sold 3/5 of the chocolate-flavored ice creams and 2/3 of the mango-flavored ice creams, how many total ice creams were not sold? There were a total of 50 + 54 = <<50+54=104>>104 ice creams. There were 50 x 3/5 = <<50*3/5=30>>30 chocolate-flavored ice creams sold. There were 54 x 2/3 = <<54*2/3=36>>36 mango-flavored ice creams sold. A total of 30 + 36 = <<30+36=66>>66 ice creams were sold. So, 104 - 66 = <<104-66=38>>38 ice creams were not sold. #### 38