Cathy and Chris got summer jobs at the cake shop and were supposed to work 20 hours per week each for 2 months. During that time, Chris got sick for one week and Cathy took her shifts. If there are four weeks in a month, how many hours did Cathy work during the 2 months?

How many weeks were they supposed to work? ** There are 4 weeks in a month so Cathy and Chris were supposed to work for 4 weeks/month x 2 months =

<<4*2=8>>8 weeks each. How many weeks did Chris and Cathy work? ** Since Chris got sick then Chris was only able to work for 8 weeks - 1 week = 7 weeks while Cathy worked for 8 weeks + 1 week = 9 weeks. How many hours did Cathy work? ** Therefore, Cathy worked for 9 weeks x 20 hours/week = <<9*20=180>>180 hours. #### 180 Annie has $120. The restaurant next door sells hamburgers for $4 each. The restaurant across the street sells milkshakes for $3 each. Annie buys 8 hamburgers and 6 milkshakes. How much money, in dollars, does she have left? How much money does Annie spend on hamburgers? ** Annie spends 4*8=<<4*8=32>>32 dollars on hamburgers. How much money does Annie spend on milkshakes? ** Annie spends 3*6=<<3*6=18>>18 dollars on milkshakes. How much money does Annie spend on hamburgers and milkshakes? ** Annie spends 32+18=<<32+18=50>>50 dollars on hamburgers and milkshakes. How much money does Annie have left? ** Annie has 120-50=<<120-50=70>>70 dollars left. #### 70 Lou Senior took 3 cookies out of the cookie jar and ate them. Since he didn't get caught by his wife, he went back the next day and took another 3 cookies out of the jar. But after eating just one of the cookies, he felt guilty about it and put the other two cookies back. His son, Louie Junior saw that his Dad was eating cookies. So, Louie Junior took seven cookies out of the jar and hid them in his bedroom for later. The next morning, Debra, Lou's wife looked into the cookie jar and reacted by accusing her husband of eating half of the cookies out of the cookie jar. How many cookies remained in the jar? How many cookies did Lou Senior take? ** Lou Sr 3 cookies from the jar, then another three, but then put two back, for a total of 3+3-2=<<3+3-2=4>>4 cookies removed. How many cookies did Louie Junior take? ** Louie Jr took seven more out of the jar, for a total of 4+7=<<4+7=11>>11 cookies removed. How many cookies are missing? ** If Debra thought half were gone, then the number of missing cookies would equal the number of cookies that remain, or 11 missing=11 remaining cookies #### 11 Mrs. Lopez and her family are going to the movie theatre. Adult tickets are $11. Children’s tickets (ages 3-12) are $8. Senior citizen’s tickets (ages 60+) are $9. Mrs. Lopez needs to buy movie tickets for her husband, herself, her parents (ages 72 and 75), and her three children (ages 7, 10, 14). How much money does she need to buy everyone’s tickets? How much money does Mrs. Lopez need to buy two adult tickets? ** Mrs. Lopez needs to buy two adult tickets for $11 x 2 = $<<11*2=22>>22. How much money does Mrs. Lopez need to buy two senior citizen tickets? ** She needs to buy two senior citizen tickets for $9 x 2 = $<<9*2=18>>18. How much money does Mrs. Lopez need to buy three children’s tickets? ** She needs to buy three children’s tickets for $8 x 3 = $<<8*3=24>>24. How much money does Mrs. Lopez need to buy everyone’s tickets? ** For everyone’s tickets, Mrs. Lopez needs to spend $22 + $18 + $24 = $<<22+18+24=64>>64 for seven tickets. #### 64 John decides to get a new apartment with a roommate. His former rent was $2 per square foot for a 750 square foot apartment. His new apartment cost $2800 per month, which he splits evenly with the roommate. How much money does he save a year? How much did John's old apartment cost? ** His old apartment cost 750*$2=$<<750*2=1500>>1500 a month How much does John's new apartment cost? ** His new apartment cost $2800/2=$<<2800/2=1400>>1400 a month How much money does John save a month? ** So he saves $1500-$1400=$<<1500-1400=100>>100 a month How much money does John save a year? ** That means he saves $100*12=$<<100*12=1200>>1200 a year #### 1200 There were students from three different schools taking part in a debate organized by the town's mayor on a stage. The first school had twice as many students as the second school, and the second school had 40 more students than the third school. If the third school had 200 students, and after the debate was over, every student shook the mayor's hand, calculate the total number of students who shook the mayor's hand on the stage. How many students were in the second school? ** If the third school had 200 students, and the second school had 40 more students than the third school, the second school had 200+40 = <<200+40=240>>240 students. How many students were on stage? ** The third and second schools had 240+200 = <<240+200=440>>440 students on stage taking part in the debate. How many students were in the first school? ** Since the first school had twice as many students as the second school, and the second school had 240 students, the first school had 240*2= <<240*2=480>>480 students on stage taking part in the debate. How many students shook the mayor's hand? ** If after the debate was over, every student at the stage shook the mayor's hand, the number of students who shook the mayor's hand is 480+440 = <<480+440=920>>920 students #### 920 Jordan picked 54 mangoes from his tree. One-third of the mangoes were ripe while the other two-thirds were not yet ripe. Jordan kept 16 unripe mangoes and gave the remainder to his sister who pickled them in glass jars. If it takes 4 mangoes to fill a jar, how many jars of pickled mangoes can Jordan's sister make? How many ripe mangoes did Jordan pick? ** Jordan picked 54/3 = <<54/3=18>>18 ripe mangoes. How many unripe mangoes did Jordan pick? ** He picked 54 - 18 = <<54-18=36>>36 unripe mangoes. How many unripe mangoes did Jordan give to his sister? ** Jordan gave 36 - 16 = <<36-16=20>>20 unripe mangoes to his sister. How many jars of pickled mangoes can Jordan's sister make? ** Jordan's sister can make 20/4 = <<20/4=5>>5 jars of pickled mangoes. #### 5 Jill sells girl scout cookies. This year, she wants to sell at least 150 cookie boxes. Her first customer buys 5 boxes, Her second one buys 4 times more than her first customer. Her third customer buys half as much as her second. The fourth customer buys 3 times as much as her third. Lastly, her final customer buys 10. How many boxes so Jill have left to sell to hit her sales goal? How many boxes does Jill's second customer buy? ** Jill's second customer buys 4 times more than her first customer's 5 boxes, so they buy 4*5=<<4*5=20>>20 boxes How many boxes does Jill's third customer buy? ** Jill's third customer buys half of what her second customer bought, so that means they buy 20/2= <<20/2=10>>10 boxes How many boxes does Jill's fourth customer buy? ** Jill's fourth customer buys 3 times as many as what her third customer bought, so that means they buy 10*3= <<3*10=30>>30 boxes How many boxes has Jill sold? ** Adding in the 5 boxes sold to the first customer, and the 10 boxes sold to the last one, that means Jill has sold 5+10+20+10+30= <<5+10+20+10+30=75>>75 boxes How many more boxes does Jill need to sell? ** Since Jill's goal is 150 boxes sold, and she's only sold 75 so far, she needs to sell 150-75=<<150-75=75>>75 more boxes to hit her goal #### 75 Susie has 572 beans in the jar. One-fourth of them are red and one-third of the remaining beans are white. Then half of the remaining are green beans. How many green beans are there? How many red beans does Susie have? ** Susie has 572 x 1/4 = <<572*1/4=143>>143 red beans. How many beans are not red? ** There were 572 - 143 = <<572-143=429>>429 beans that are not red. How many white beans does Susie have? ** There are 429 x 1/3 = <<429*1/3=143>>143 white beans. How many beans were left? ** So, there were 429 - 143 = <<429-143=286>>286 beans left. How many green beans are there? ** Therefore, 286/2 = <<286/2=143>>143 beans are green. #### 143 An airplane was flying from California to Virginia. The flight started with 124 passengers. They made a layover in Texas. 58 passengers got off and 24 got on. From there, they flew to North Carolina, where 47 people got off and 14 got on, before flying to Virginia. There were also a total of 10 crew members on board for the entire flight. How many people landed in Virginia? How many passengers were on the flight? ** They started with 124 passengers. 58 got off and 24 got on so 124-58+24 = <<124-58+24=90>>90 How many passengers were on the flight to NC? ** 90 people flew to NC where 47 passengers got off and 14 got on. This flight now had 90-47+14 = <<90-47+14=57>>57 How many passengers landed in Virginia? ** There were also 10 crew members so 57+10 = 67 passengers landed in Virginia #### 67