Ratios
There are 18 boys and 11 girls in a math class reunion, what is the ratio of girls to boys?
11:18
If Sebastián is driving at 85km/h, it takes him 4 hours to get to the beach, at what rate would he has to drive to get there in 3 hours?
113km/hr
Raul is going to buy a new bike, the original price is $26,500, but lucky for him, this week it has a 15% discount. How much will Raul pay for his new bike?
$22,525
If all the students in this class pay attention, take notes,do their homework and work in class. What is the percentage of students that will pass with a great grade?
100%
Who is the principal of PrepaTec San Luis Potosí?
Ana Laura Montiel
There are 169 trees in a park, out of which 65 are pines, 78 are palm trees and 26 are apple trees. What is te ratio of pines to apple trees? write your answer in simplified form
5:2
Miguel gives Yara 16 roses and 3 chocolates for Valentines, if Emilio has 2 chocolates buts wants go give Lena roses at the same proportion as Miguel did, how many roses does he has to buy?
10 roses
Maria Paula and Ana Paula went out for breakfast because they finished their quiz. The bill was $238.50and they left 15% tip. How much did they pay in total? Round to the nearest tenth
$274.30
There is a Party to which Xime and Jonathan are going and they were asked to bring chips and soda. They brought 27% coke, 17% soda, 14.1% sprite, and the rest diet coke. If there were 85 sodas, how many were there of soda?
20
What is Fabiana´s lastname?
Padilla
Bruno socred 12 goals last seasson, the total number of goals of his team were 32, what is the ratio of Bruno´s goals to the total number of goals?
3:8
In an eating contest, Jose Manuel and Jero eat 47 hotdogs in 72 minutes, if they bring another member to the team, how many minutes will it take them to eat the same amount of hotdogs?
48 minutes
Rubén and Sofía had to do an extra homework because they were not paying attention. If they got an 85% correct and there were 20 excercises total, how many of them they got wrong?
3 excercises
If Regi Tapia has played 341 matches and has won 286 of them, what percentage has he lost?
16.1%
How many math teachers are there in 2nd semester? (including irregular groups)
8 teachers (Ana, Caro, Irma, Vero, Graciela, Paty, María and Mario)
Montse solved 14 math excercises during class, out of 22. She relized that 2 of them were wrong. What is the ratio of the excercises done wrong to the ones she did right?
1:7
If Regi Grimaldo needs to memorize 12 songs for a TV show, and this represents 2/3 of the songs she needs to know, how many songs are there in the contest?
18 songs
If Kyeonghui, Majo and Paty played 48 mathces of UNO, and Kyeonghui has won 25% of them, Majo 37.5% and Paty the rest, how many games have each one won?
Kyeonghui - 12
Majo - 18
Paty - 18
Regi Rodriguez and Fer are organizing a bake sale, It takes them 17 hours to have the cakes ready, if they invite Bruno, Paty and Sofía, how long will it take them to bake all the cakes?
6.8 hours
What is the name of PrepaTec Robotics team?
Lambot
There are 16 boys and 13 girls in a running club, 13 boys and 9 qualified to the nationals. What is the ratio of the non-qualified boys to the whole group?
3:29
Rodrigo is saving money to take Romina to a nice dinner date, if he has $48 dollars and this represents 5/7 of what he needs, what would be the total amout he needs?
$67.50
Bea and Valeria are throwing a party, and they invited 135 friends. 27 of them are from the soccer team, 52 are from school, 16 from their singing class and the rest from camp. What percentage of friends are from the singing class?
11.85%
Renata signed up for a triathlon, she is going to swim 2km, bike 90km and run 21km, what percentage of the race is the bike part?
79.6%
Who are the heads of: humanities, languages and science at PrepaTec
Humanities - Pablo
Languages - Perla
Science - María