Question: In a math contest, Riley and Ofelia are on one team. The team's final score is obtained by adding the scores of the students of the same team. Out of the 35 questions, Riley got 3 mistakes while Ofelia got 5 more than half the score of Riley. How many incorrect answers did their team get?
Answer: Riley's score is 35 - 3 = 32. Half of Riley's score is 32 / 2 = 16. So Ofelia's score is 16 + 5 = 21. Hence, Ofelia got 35 - 21 = 14 incorrect answers. Therefore, their team got 3 + 14 = 17 incorrect answers. The answer is 17.
[Question]Delaney has to catch a bus that leaves at 8:00. a.m to school every day. He always takes 30 minutes to reach the pick-up point from his home. One day he woke up late and left his home at 7:50. How much time did he miss the bus by when he reached the pick-up point?
[Answer]If he left his home at 7:50 a.m. and the distance to the pick - up point is 30 minutes away, he arrived at the pick - up point at 7:50 + 30 minutes = 8:20 a.m. If the bus leaves at 8:00 a.m. every day, then Delaney was 8:20 a.m. - 8:00 a.m. = 20 minutes late when the bus had already left. The answer is 20.
Q: At a certain car dealership, 15% of the cars cost less than $15000 and 40% of the cars cost more than $20000. If there are 3000 cars at the dealership, how many of them cost between $15000 and $20000?
A: 15% of 3000 cars is (15 / 100) * 3000 = 450 cars. 40% of 3000 cars is (40 / 100) * 3000 = 1200 cars. 450 + 1200 = 1650 cars which cost either less than $15000 or more than $20000. Out of 3000 cars, there will then be 3000 - 1650 = 1350 cars left which cost between $15000 and $20000. The answer is 1350.
Question: Tomorrow, Pete must finish paying off the last $90 he owes on a bike. He goes through his wallet and finds two $20 bills. Checking his pockets, he finds four $10 bills. Unhappy that he doesn't have the entire amount, he suddenly remembers that he has plastic bottles that can be returned to his local store for cash. If the store pays 50 cents for each bottle, how many bottles will Pete have to return to the store?
Answer: Pete's wallet contains 2 * 20 = 40 dollars. The money in Pete's pockets is 4 * 10 = 40 dollars. In total Pete has 40 + 40 = 80 dollars. He owes 90 dollars on the bike and therefore needs 90 - 80 = 10 more dollars. Since 50 cents is dollar, then the number of bottles required to get 10 dollars is 10 / (1 / 2) = 10 * 2 = 20 bottles. The answer is 20.
[Question]James pays $1000 for advertising. It brought 100 customers to his site and 80% of those bought something at the store that cost $25. How much profit does he gain from the ad?
[Answer]100 * .8 = 80 customers bought something. That means they were worth 80 * 25 = $2000. So he gained 2000 - 1000 = $1000 from the ad. The answer is 1000.
[Question]A jar of jellybeans has 14 blue jellybeans, 26 purple jellybeans and 40 orange jellybeans. If there are 200 jellybeans in the jar, how many are there of the red color?
[Answer]
Total of blue, purple, and orange jellybeans is 14 + 26 + 40 = 80. There are 200 - 80 = 120 red jellybeans. The answer is 120.