Intersection of sets - practice problems - page 8 of 10
Number of problems found: 191
- Students 9181
Of 34 pupils, 17 skis and 21 skates, 12 practice both sports. a) how many students from the class ski or skate? b) how many students from the class ski but do not skate? c) how many students from the class do not skate or ski? - Eq2 2
Solve the following equation with quadratic members and rational function: (x²+1)/(x-4) + (x²-1)/(x+3) = 23 - 80 students
Eighty students were asked what type of test they preferred. Fifty students said they liked multiple choice, and 42 liked true or false. If 36 liked multiple choice and true or false types, how many students preferred multiple choice only? - Intersect and conjuction Let U={1,2,3,4,5,6} A={1,3,5} B={2,4,6} C={3,6} Find the following. 1. )AUB 2. )A'UB'
- Entertainment 8353 Twenty-two pupils attend class 4A. Of these, 12 pupils subscribe to a research magazine, 5 pupils subscribe to an entertainment magazine, and 8 pupils do not subscribe to any of these magazines. How many pupils subscribe to both magazines?
- Students 8345
Ninety-seven pupils go to music school, each playing the piano or violin. Sixty-three pupils play the piano, and 58 pupils play the violin. How many students play the piano and the violin? - Intersection 8295
Write whether the function is ascending or descending and determine the coordinates of the intersection with the x and y axes: y = 3x-2 y = 5x + 5 y = -0.5x-1
- Pupils There are 27 pupils in the classroom. They can swim 21 and ski nine pupils. Neither swim nor ski three pupils. How many pupils can swim and ski?
- Probability of intersection
Three students have a probability of 0.7,0.5, and 0.4 to graduate from university, respectively. What is the probability that at least one of them will be graduated? - Small painters
There are ten pupils in the painting group. Eight pupils paint with watercolors, and nine pupils with tempera colors. How many pupils paint both water and tempera colors when each pupil paints? - Ten boys Ten boys chose to go to the supermarket. Six boys bought gum, and nine boys bought a lollipop. How many boys bought gum and a lollipop?
- Did not use
A father, mother, three children, both grandmothers, and both grandfathers were sitting at the table. Three of the family members used a knife and fork while eating. This is exactly half of those who used a fork and exactly three quarters of those who use - The Hotel
The Holiday Hotel has the same number of rooms on each floor. Rooms are numbered with natural numerals sequentially from the first floor; no number is omitted, and each room has a different number. Three tourists arrived at the hotel. The first one was in - Wafers
They used 200 pieces to make wafers. One hundred fifty-seven topped with caramel topping and 100 with sugar topping. How many wafers did both toppings have? - Marriage sttus
In our city, 3/5 of the women are married to 2/3 of the men. Find what part of the population is free.
- Left handed
It is known that 25% of the population is left-handed. What is the probability that there is a maximum of three left-handers at a seminar with 30 participants? - Languages 7160
Out of 100 students, 30 studied German, 28 studied German, 42 learned French, eight studied German and German, 10 German and German, and 5 German and German. How many students have learned all three languages? - Probability 7154
82% of football players, and 26% are hockey players at school. What is the probability that: A) I'm not a hockey player B) I know both sports C) I know one sport - Mathematical 7136
Out of 50 pupils, 44 solved at least one of the Olympiads - MO Mathematical Olympiad and BO Biology Olympiad. Twenty pupils still need to solve the MO. Of those who dealt with both Olympiads, 1/3 of those who dealt with just one were. How many pupils solv - Twenty-nine 7081
Twenty-nine people lost bread rolls. Eighteen people tasted the cake. Thirty-two people offered themselves drinks. Seven people had a drink with cake. Eighteen people had bread and a drink. Eight people had bread and cake. Five people offered themselves t
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
See also more information on Wikipedia.
