# Sets - math problems

#### Number of problems found: 112

- Subtracting sets

For two sets K, L is true: K has 30 elements, L has 27 elements and the set L - K has 22 elements. How many elements does the set K - L have? - Two sets

Suppose Set B contains 69 elements and the total number elements in either Set A or Set B is 124. If the Sets A and B have 29 elements in common, how many elements are contained in set A? - Disjoint

How many elements have union and intersection of two disjoint sets when the first have 1 and secodn 8 elements. - Operations with sets

The set B - A has twice as fewer elements than the set A - B and four times fewer elements than the set A ∩ B. How many times more elements does the set A have than the set B? - C(6,3)

C(6,3) + 3 P(6,3) - Median or middle

The number of hours of television watched per day by a sample of 28 people is given below: 4, 1, 5, 5, 2, 5, 4, 4, 2, 3, 6, 8, 3, 5, 2, 0, 3, 5, 9, 4, 5, 2, 1, 3, 4, 7, 2, 9 What is the median value? - 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' - Probabilities

If probabilities of A, B and A ∩ B are P (A) = 0.62 P (B) = 0.78 and P (A ∩ B) = 0.26 calculate the following probability (of union. intersect and opposite and its combinations): - Intersections 3

Find the intersections of the circles x^{2}+ y^{2}+ 6 x - 10 y + 9 = 0 and x^{2}+ y^{2}+ 18 x + 4 y + 21 = 0 - TVs

Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase. - Marriage sttus

In our city, there are 3/5 of the women married to 2/3 of the men. Find what part of the population is free. - Subsets

How many 19 element's subsets can be made from the 26 element set? - Dices throws

What is the probability that the two throws of the dice: a) Six falls even once b) Six will fall at least once - Glasses

Imagine a set of students in your class (number of students: 19), who wears glasses. How much minimum and maximum element may contain this set. - Raffle

There are 200 draws in the raffle, but only 20 of them win. What is the probability of at least 4 winnings for a group of people who have bought 5 tickets together? - Classroom 3

How many children are in the classroom, where 13 children are higher than Lenka and 9 children lower than Lenka? - Count of roots

How many solutions has equation x. y = 7757 with two unknowns on the set of natural numbers? - Coloured teacups

The teacups in Tea Stop 55 are `2/5` green and `3/10` yellow. What fraction of the teacups are neither green nor yellow? - Pizza master

Master says that he can splits pizza to 16 parts by five equals straight cuts. Is it possible? - Subsets

How many are all subsets of set C = (97, 67, 66, 18, 59, 64)?

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