Venn Diagram
Trending Questions
- (A∪B)−B
- A−(A∩B)
- (A∪B)−(A∩B)
- (A∩B)∪(A∪B)
- 12.8
- 13
- 13.5
- 13.9
A class has 175 students. the followng data shows the number of students obtaining one or more subjects. mathematics 100; physics 70; chemistry 40; mathematics and physics 30; mathematics and chemistry 28; physics and chemistry 23; mathematics, physics and chemistry 18. how many students have offered mathematics alone?
(1) 35
(2) 48
(3) 60
(4) 22
Let . Then the number of sets such that is
In a town of 10, 000 families it was found that 40% family buy newspaper A, 20% buy newspaper B and 10% families buy newspaper C, 5% families buy A and B, 3% buy B and C and 4% buy A and C. If 2% families buy all the three newspapers, then number of families which buy A only is
3300
3100
1400
2900
- 128
- 160
- 216
- 240
p: Ramesh listens to music.
q: Ramesh is out of his village.
r: It is Sunday.
s: It is Saturday.
Then the statement “Ramesh listens to music only if he is in his village and it is Sunday or Saturday” can be expressed as
- 4
- 5
- 10
- 3
- 24
- 20
- 22
- 26
What do and stands for in permutations?
There are 18 stations between Hyderabad and Bangalore. How many second class ticket have to be printed, so that passenger can travel from one station to any other station?
In a certain town, of families own a cell phone, of families own a scooter and of families own neither a cell phone nor a scooter. If families own both a cell phone and a scooter, then the total number of families in the town is
A school awarded 42 medals in hockey , 18 in basketball and 23 in cricket. if these medals are bagged by a total of 65 students and only 4 students got medals in all the three sports; find
1) How many students received medals in exactly two of the three sports?
2) How many students received medals in exactly one of the three sports?
A survey shows that 67% of people like P1 whereas 73% like P2 if x% of people like both the P1 and P2 then the value of x is ?
(a) 5% families own both a car and a phone
(b) 35% families own either a car or a phone
(c) 40, 000 families live in the town
Then,
- Only (b) and (c) are correct
- Only (a) and (c) are correct
- All (a), (b) and (c) are correct
- Only (a) and (b) are correct
- 15
- 20
- 30
- 40
- [0, 40]
- [0, 44]
- [2, 28]
- [2, 38]
A Hater Of Knowledge And Learning is called ___________.
- 30
- 50
- 80
- 55
- 43
- 76
- 49
- 53
Let and be four non-empty sets. The contrapositive statement of “If and then ” is
If, then or
If , then and
If , then and
If then or
The set of all for which is :
Three sets and are such that and , then
- (−∞, 35)−{0}
- (−∞, 1)−{0}
- (35, ∞)
- (−∞, 35)
In a class there are 200 students, at least 140 of students like Maths, at least 150 like Science and at least 160 like English. What is the minimum number of students who like all three subjects?
- 50
- 83
- 100
- 150
- 15
- 13
- 17.5
- 12.7
are two sets
none of these
Minimize and Maximize Z=3x+9y
Subject to the constraints:
x+3y≤60
x+y≥10
x≤y
x≥0, y≥0