There is 80 mg of caffeine in a cup of coffee. Lisa does not want to drink more than 200 mg of caffeine per day. If she drinks three cups of coffee, how many milligrams of coffee did Lisa drink over her goal?

Lisa drinks 80*3=

<<80*3=240>>240 mg of caffeine in 3 cups of coffee. She wanted to have 200, so she is 40 mg over her goal because 240-200 = <<240-200=40>>40mg. #### 40 Jake makes a drink that is 2 parts Coke, 1 part Sprite and 3 parts Mountain Dew. If the drink contains 6 ounces of Coke, how many ounces is the drink? The drink is 2+1+3=<<2+1+3=6>>6 parts The drink is 2/6=1/3 coke So the drink is 6/(1/3)=<<6/(1/3)=18>>18 ounces #### 18 Four years ago, Kody was only half as old as Mohamed. If Mohamed is currently twice 30 years old, how old is Kody? Mohammed is currently 2*30 = <<2*30=60>>60 years old. four years ago, Mohammed was 60-4 = <<60-4=56>>56 years old Four years ago, Kody was half Mohammed's age, which is 56/2 = <<56/2=28>>28 years old. Currently, Kody is 28+4 = <<28+4=32>>32 years old #### 32 Jon decides to take up baseball. He can throw a fastball at 80 miles per hour. He goes through intense training 4 times for 4 weeks each time and at the end of the last one he can throw a ball 20% faster. How much speed (in mph) did he gain per week, assuming he gained an equal amount of speed (in mph) each week? He threw the ball 80*.2=<<80*.2=16>>16 mph faster He was training for 4*4=<<4*4=16>>16 weeks So he gained 16/16= <<16/16=1>>1 mph per week #### 1 Derek was 6 years old when he had three times as many dogs as cars. Ten years later, after selling some of his dogs and buying 210 more cars, the number of cars became twice the number of dogs. How many dogs does Derek have now if he had 90 dogs when he was six years old? At six years old, with three times as many dogs as cars, Derek had 90/3 = <<90/3=30>>30 cars. Ten years later, after buying 210 more cars, Derek has 210+30 = <<210+30=240>>240 cars. Since the number of cars is twice as many as the number of dogs, Derek currently has 240/2 = <<240/2=120>>120 dogs #### 120 Anya washes 32 hairs down the drain when she washes her hair and brushes out half that amount when she brushes it. How many hairs does Anya have to grow back to always have one more hair than she started with after washing, brushing, and growing it? Anya brushes out 32 / 2 = <<32/2=16>>16 hairs. To always have the same amount of hair, Anya has to grow back 16 + 32 + 1 = <<16+32+1=49>>49 hairs. #### 49 Jacob takes four tests in his physics class and earns 85, 79, 92 and 84. What must he earn on his fifth and final test to have an overall average of 85? Since wants needs an 85 as an average and he takes five tests, he must have 85 * 5 = <<85*5=425>>425 total points. Currently he has 85 + 79 + 92 + 84 = <<85+79+92+84=340>>340 points. So for his fifth test he needs 425 - 340 = <<425-340=85>>85 points. #### 85 Grant scored 10 points higher on his math test than John. John received twice as many points as Hunter who scored a 45 on his math test. What was Grant's test score? John received twice as many points as Hunter, who received a 45 so John scored 2*45 = <<2*45=90>>90 on his test Grants scored 10 more points than John who got a 90 so Grant received 10+90 = <<10+90=100>>100 on his test #### 100 Brian goes fishing twice as often as Chris, but catches 2/5 times fewer fish than Chris per trip. If Brian caught 400 fish every time he went fishing, how many fish did they catch altogether if Chris went fishing 10 times? If Brian caught 400 fish in one trip, he caught 2*400=<<400*2=800>>800 fish in two trips. Since Brian catches 2/5 times less fish than Chris per trip, Chris catches 2/5*400=<<2/5*400=160>>160 more fish in one fishing trip. Chris's total number of fish in one trip is 400+160 = <<400+160=560>>560 fish. In 10 trips, Chris catches 560*10=<<560*10=5600>>5600 fish. If in his two trips Brian catches 800 fish, and he goes fishing twice as often as Chris, if Chris goes fishing 10 times, Brian will catch 800*10=<<800*10=8000>>8000 fish. The total number of fish they'll catch if Chris goes fishing ten times is 8000+5600=<<8000+5600=13600>>13600 #### 13600 Anne drops a mirror and breaks it into 60 pieces. She sweeps up half of them, then her cat steals 3 pieces and her boyfriend picks up 1/3 of the remaining pieces. How many pieces does her boyfriend pick up? First find the number of pieces left after Anne sweeps up: 60 pieces / 2 = <<60/2=30>>30 pieces Then subtract the number her cat takes: 30 pieces - 3 pieces = <<30-3=27>>27 pieces Divide that number by 3 to find how many pieces her boyfriend picks up: 27 pieces / 3 = <<27/3=9>>9 pieces #### 9