Q: A store is selling mobile phones. This store contains 20 units of phones but the owner found out that there were 5 defective units. After he got rid of the defective units, he started to sell the rest of his units to customer A who bought 3 units, customer B who bought a certain amount of units, and customer C who bought 7 units. In the end, all non-defective units were sold. How many units were sold to Customer B?
A: There were 20 - 5 = 15 units of non - defective smartphones. There were 3 + 7 = 10 units sold to customers A and C. So, 15 - 10 = 5 units were sold to customer B. The answer is 5.
Question: Veronica, who is the team captain of their school football team, carried 27 yellow balls and 33 brown balls to the field for the team's matchday practice. What percentage of the balls that she carried were yellow?
Answer: The total number of balls that she carried is 27 + 33 = 60. The percentage that represents the yellow balls is 27 / 60 * 100% = 45%. The answer is 45.
[Question]Rocky boxed 190 fights in his career. 50 percent of his fights were knockouts, and 20 percent of the knockouts were in the first round. How many knockouts did Rocky have in the first round?
[Answer]Knockouts:190(.50) = 95. First Round:95(.2) = 19. The answer is 19.
Q: A choir splits into 3 groups for their performances. The first group has 25 members, and the second group has 30 members. The third group has the remaining members of the choir. If the choir overall has 70 members, how many members are in the third group?
A: There are 25 + 30 members = 55 members in the first two groups. This means the third group has 70 total members – 55 members in the first two groups = 15 members. The answer is 15.
Question: Jimmy and Tonya both like collecting matchbooks and stamps. Tonya and Jimmy decide to trade some stamps and matchbooks. They have each decided that one stamp is worth 12 matches. Each matchbook contains 24 matches. If Tonya arrives with 13 stamps, Jimmy has 5 matchbooks, and Jimmy trades all his matchbooks for stamps, how many stamps does Tonya have left?
Answer: Jimmy has 120 matches because 5 times 24 equals 120. Jimmy trades this for 10 stamps because 120 divided by 12 equals 10. Tonya has 3 stamps left because 13 minus 10 equals 3. The answer is 3.
Q: Sarah makes 5 times more money per hour than Connor does. If Connor earns $7.20 per hour, how much does Sarah make in an 8-hour day?
A:
Sarah makes $7.2 * 5 = $36 per hour. Sarah makes $36 * 8 = $288 per day. The answer is 288.