Colin can skip at six times the speed that Brandon can. Brandon can skip at one-third the speed that Tony can. And Tony can skip at twice the speed that Bruce can. At what speed, in miles per hour, can Colin skip if Bruce skips at 1 mile per hour?

Tony can skip at twice the speed that Bruce can, for a speed of 1*2=

<<1*2=2>>2 miles per hour. Brandon can skip at one-third the speed that Tony can, for a speed of 2*(1/3) = 2/3 miles per hour. Colin can skip at six times the speed that Brandon can, for a speed of (2/3*6=4 miles per hour). #### 4 Janet, a third grade teacher, is picking up the sack lunch order from a local deli for the field trip she is taking her class on. There are 35 children in her class, 5 volunteer chaperones, and herself. She she also ordered three additional sack lunches, just in case there was a problem. Each sack lunch costs $7. How much do all the lunches cost in total? Janet needs 35 lunches for the kids + 5 for the chaperones + 1 for herself + 3 extras = <<35+5+1+3=44>>44 lunches. Each lunch is $7, so lunch for the field trip costs $7 per lunch * 44 lunches = $<<7*44=308>>308 total #### 308 At 30, Anika is 4/3 the age of Maddie. What would be their average age in 15 years? If Anika is 30 now, in 15 years, she'll be 30+15=<<30+15=45>>45 years old. At 30, Anika is 4/3 the age of Maddie, meaning Maddie is 4/3*30=<<4/3*30=40>>40 years. In 15 years, Maddie will be 40+15=<<40+15=55>>55 years old. Their total age in 15 years will be 55+45=<<55+45=100>>100 Their average age in 15 years will be 100/2=<<100/2=50>>50 #### 50 Natalia sold clips to 48 of her friends in April, and then she sold half as many clips in May. How many clips did Natalia sell altogether in April and May? How many clips did Natalia sell in May? ** Natalia sold 48/2 = <<48/2=24>>24 clips in May. How many clips did Natalia sell altogether in April and May? ** Natalia sold 48+24 = <<48+24=72>>72 clips altogether in April and May. #### 72 Weng earns $12 an hour for babysitting. Yesterday, she just did 50 minutes of babysitting. How much did she earn? How much does Weng earn per minute? ** Weng earns 12/60 = $<<12/60=0.2>>0.2 per minute. How much did Weng earn? ** Working 50 minutes, she earned 0.2 x 50 = $<<0.2*50=10>>10. #### 10 Betty is saving money for a new wallet which costs $100. Betty has only half of the money she needs. Her parents decided to give her $15 for that purpose, and her grandparents twice as much as her parents. How much more money does Betty need to buy the wallet? How much money does Betty have in the beginning? ** In the beginning, Betty has only 100 / 2 = $<<100/2=50>>50. How much money did Betty's grandparents give her? ** Betty's grandparents gave her 15 * 2 = $<<15*2=30>>30. How much more money does Betty need to buy the wallet? ** This means, Betty needs 100 - 50 - 30 - 15 = $<<100-50-30-15=5>>5 more. #### 5 Julie is reading a 120-page book. Yesterday, she was able to read 12 pages and today, she read twice as many pages as yesterday. If she wants to read half of the remaining pages tomorrow, how many pages should she read? How many pages did Maila read today? ** Maila read 12 x 2 = <<12*2=24>>24 pages today. How many pages did Maila read since yesterday? ** So she was able to read a total of 12 + 24 = <<12+24=36>>36 pages since yesterday. How many pages are left to be read? ** There are 120 - 36 = <<120-36=84>>84 pages left to be read. How many pages should she read tomorrow? ** Since she wants to read half of the remaining pages tomorrow, then she should read 84/2 = <<84/2=42>>42 pages. #### 42 James writes a 3-page letter to 2 different friends twice a week. How many pages does he write a year? How many pages does he write each week? ** He writes each friend 3*2=<<3*2=6>>6 pages a week How many pages does he write every week? ** So he writes 6*2=<<6*2=12>>12 pages every week How many pages does he write a year? ** That means he writes 12*52=<<12*52=624>>624 pages a year #### 624 Mark has a garden with flowers. He planted plants of three different colors in it. Ten of them are yellow, and there are 80% more of those in purple. There are only 25% as many green flowers as there are yellow and purple flowers. How many flowers does Mark have in his garden? How many more purple flowers are there than yellow flowers? ** There are 80/100 * 10 = <<80/100*10=8>>8 more purple flowers than yellow flowers. How many purple flowers are there? ** So in Mark's garden, there are 10 + 8 = <<10+8=18>>18 purple flowers. How many flowers are there in total? ** Purple and yellow flowers sum up to 10 + 18 = <<10+18=28>>28 flowers. How many green flowers are there? ** That means in Mark's garden there are 25/100 * 28 = <<25/100*28=7>>7 green flowers. How many plants does Mark have in his garden? ** So in total Mark has 28 + 7 = <<28+7=35>>35 plants in his garden. #### 35 Albert is wondering how much pizza he can eat in one day. He buys 2 large pizzas and 2 small pizzas. A large pizza has 16 slices and a small pizza has 8 slices. If he eats it all, how many pieces does he eat that day? How many slices does the largest pizza have? ** He eats 32 from the largest pizzas because 2 x 16 = <<2*16=32>>32 How many slices does the small pizza have? ** He eats 16 from the small pizza because 2 x 8 = <<2*8=16>>16 How many pieces does he eat that day? ** He eats 48 pieces because 32 + 16 = <<32+16=48>>48 #### 48