There were 28 students inside a bus before stopping at an intersection. After stopping at an intersection, there were 58 students on the bus. What's 40% of the number of students who entered the bus at the intermediate stop?

At the intermediate stop, 58-28=

<<58-28=30>>30 students entered the bus before it stopped at the intersection. 40% of the number of students who entered the bus at the intermediate stop is 40/100*30=<<40/100*30=12>>12 #### 12 Buffy and Oz went to dinner. They shared an appetizer that cost $9.00. Each of their entrees was $20.00 and they shared a dessert that was $11.00. If they left a 30% tip, what was the entire price of the meal? Each of their entrees cost $20.00 so they cost 2*20 = $40.00 The appetizer was $9.00, the main meal was $40.00 and the dessert was $11.00 for a total of $<<9+40+11=60>>60.00 The entire meal cost $60.00 and they left a 30% tip which came to 60*.30 = $18.00 The meal was $60.00 and the tip was $18.00 so the total bill came to 60+18 = $<<60+18=78.00>>78.00 #### 78 Christine figures it would take a pint of paint to paint the front and back of 1 door in her house. She has 8 doors to paint. At the paint store, she can either buy 8 separate pints of paint for $8.00 a pint or a gallon of paint (which is the same as 8 pints) for a flat $55.00 How much money will she save if she buys the gallon of paint instead of 8 pints? 8 pints of paint cost $8.00 each so they would cost her 8*8 = $<<8*8=64.00>>64.00 8 pints of paint cost $64.00 or she could buy a gallon of paint for $55.00. If she buys a gallon, she will save 64-55 = $9.00 #### 9 If I'm 4 times older than Billy currently, and Billy is 4 years old, how old was I when Billy was born? I would currently be 4*4=<<4*4=16>>16 years old, since I'm 4 times older than Billy's age of 4. Therefore, in order to find my age at Billy's birth we'd simply subtract Billy's age of 4 from my age, meaning I was 16-4= <<16-4=12>>12 years old #### 12 Johny traveled South 40 miles, then turned East and traveled for 20 more miles than the distance he took to travel to the south. If he turned North and traveled twice the distance he had traveled to the East, calculate the total distance his journey took. If the distance he took traveling to the East is 20 miles more than the distance he took to travel to the south, he took 40+20 = 60 miles traveling to the East. Johny's total distance traveling to the south and then to the East is 60+40 = <<60+40=100>>100 miles. The journey to the North was 2*60 = <<2*60=120>>120, twice the distance he took traveling to the East. The whole journey took 100+120 = <<100+120=220>>220 miles. #### 220 A class is 40% boys. The rest are girls. Every boy in class gets an 80% on the math test. Every girl gets a 90%. What is the class average on the test? The class is 60% girls because 100 - 40 = <<100-40=60>>60 The class average is 86% because .4(80) + .6(90)= 86 #### 86 The bagels cost $2.25 each, or a dozen for $24. How much is saved, per bagel, in cents, by buying a dozen at a time? They cost 2.25*100=<<2.25*100=225>>225 cents each. At the bulk rate, they are 24/12=<<24/12=2>>2 dollar each. They cost 2*100=<<2*100=200>>200 cents each. 225-200=<<225-200=25>>25 cents are saved per bagel. #### 25 Rachel makes $12.00 as a waitress in a coffee shop. In one hour, she serves 20 different people and they all leave her a $1.25 tip. How much money did she make in that hour? She served 20 people and they all tipped her $1.25 so she made 20*1.25 = $<<20*1.25=25.00>>25.00 in tips She makes $12.00 an hour and she made $25.00 in tips so she made 12+25 = $<<12+25=37.00>>37.00 in one hour #### 37 Monica is a teacher. She has 6 classes per day. The first class has 20 students. The second and third classes have 25 students. Her fourth class has half as many as her first class. Her fifth and sixth classes have 28 students. How many students does Monica see each day? Monica has 20+25+25+28+28=<<20+25+25+28+28=126>>126 in 5 of her classes. In the fourth class, she has 20/2=<<20/2=10>>10 students. In total, she has 126+10=<<126+10=136>>136 students per day. #### 136 Danny has a huge fish tank that contains 94 guppies, 76 angelfish, 89 tiger sharks, and 58 Oscar fish. If he sells 30 guppies, 48 angelfish, 17 tiger sharks, and 24 Oscar fish. How many fish will remain? There were 94 + 76 + 89 + 58 = <<94+76+89+58=317>>317 fishes in the tank. The fish to be sold is 30 + 48 + 17 + 24 = <<30+48+17+24=119>>119. Therefore, Danny will be left with 317 - 119 = <<317-119=198>>198 fishes. #### 198