Show that AUB(A union B) = A Intersection B implies A=B.
1. In a town of 10,000 families it was found that 40% families buy newspaper A, 20% families buy newspaper B and 10% buy C. 5% buy AB, 3% buy BC and 4% buy AC. If 2% families buy all the three, find the number of families which buy i) A only ii) B only iii) none of A,BC.
a survey shows that 63% of americans like cheese whereas 76% like apples.If x% of americans like both cheese and apples,find the value of x.
plz explain in very a easy step.....
sir can you prove the de morgan's law using venn diagram?
7. In a survey of 100 people it was found that 28 read magazine A, 30 read magazine B, 42 read magazine C, 8 read magazines A B, 10 read magazine AC 5 read magazine B and C and 3 read all the three. Find:i) How many read none of the magazines?ii) How many read magazine C only?
suppose A1, A2,....,A30 are 30 sets each with 5 elements and B1, B2,...., Bn are n sets each with 3 elements. let union ofA1, A2,....,A30 = union ofB1, B2,...., Bn =S. Each element of S belongs to 10 of A's and 9 of B's. find n.
WHAT DOES IT MEAN????????????
wat are d uses of sets in our daily life?
In a school there are 200 students. 100 play cricket, 50 play hockey and 60 play basketball.30 students play both cricket and hockey, and 35 play both hockey and basketball. 45 play both basketball and cricket.
Find Out:-
a.)What is the maximum number of students who play at least one game?
b.)What is the maximum number of students who play all the three games?
c.)What is the minimum number of students playing atleast one game?
d.)What is the number of student playing all the three games?
IN A TOWN OF 10,000 FAMILIES IT WAS FOUND THAT 40% FAMILIES BUY NEWSPAPER A, 20% FAMILIES 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 NEWSPAPERS FIND THE NUMBER OF FAMILIES WHICH BUY
1. A ONLY 2. B ONLY 3. NONE OF A ,B , AND C.
IF P(A)=P(B) SHOW THAT A=B
From 50 students taking examination in mathematics, physics and chemistry, each of the student has passed in at least one of the subjects, 37 passed mathematics, 24 physics and 43 chemistry. At most 19 passed mathematics and physics, at most 29 mathematics and chemistry and at most 20 physics and chemistry. What is the largest possible no. that could have passed in all the three subjects?
is the answer 14??
Hi
Prove That : cos6A = 32cos^6A - 48cos^4A + 18cos^2A - 1.
There are 20 students in a chemistry class and 30 students in a physics class. find the number of students which are either in physics or in chemistry class in the following cases:
a)two classes meet at the same hour. (hint: n(C∩P) =Φ)
b)The two classes meet at different hours and 10 students are enrolled in both the courses. (hint: n(C∩P)=10)
Show that AUB(A union B) = A Intersection B implies A=B.
1. In a town of 10,000 families it was found that 40% families buy newspaper A, 20% families buy newspaper B and 10% buy C. 5% buy AB, 3% buy BC and 4% buy AC. If 2% families buy all the three, find the number of families which buy i) A only ii) B only iii) none of A,BC.
a survey shows that 63% of americans like cheese whereas 76% like apples.If x% of americans like both cheese and apples,find the value of x.
rnplz explain in very a easy step.....
sir can you prove the de morgan's law using venn diagram?
7. In a survey of 100 people it was found that 28 read magazine A, 30 read magazine B, 42 read magazine C, 8 read magazines A B, 10 read magazine AC 5 read magazine B and C and 3 read all the three. Find:i) How many read none of the magazines?ii) How many read magazine C only?
Best books for cbse class 11 commerce students?
suppose A1, A2,....,A30 are 30 sets each with 5 elements and B1, B2,...., Bn are n sets each with 3 elements. let union ofA1, A2,....,A30 = union ofB1, B2,...., Bn =S. Each element of S belongs to 10 of A's and 9 of B's. find n.
WHAT DOES IT MEAN????????????
wat are d uses of sets in our daily life?
In a school there are 200 students. 100 play cricket, 50 play hockey and 60 play basketball.30 students play both cricket and hockey, and 35 play both hockey and basketball. 45 play both basketball and cricket.
Find Out:-
a.)What is the maximum number of students who play at least one game?
b.)What is the maximum number of students who play all the three games?
c.)What is the minimum number of students playing atleast one game?
d.)What is the number of student playing all the three games?
IN A TOWN OF 10,000 FAMILIES IT WAS FOUND THAT 40% FAMILIES BUY NEWSPAPER A, 20% FAMILIES 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 NEWSPAPERS FIND THE NUMBER OF FAMILIES WHICH BUY
1. A ONLY 2. B ONLY 3. NONE OF A ,B , AND C.
IF P(A)=P(B) SHOW THAT A=B
From 50 students taking examination in mathematics, physics and chemistry, each of the student has passed in at least one of the subjects, 37 passed mathematics, 24 physics and 43 chemistry. At most 19 passed mathematics and physics, at most 29 mathematics and chemistry and at most 20 physics and chemistry. What is the largest possible no. that could have passed in all the three subjects?
is the answer 14??
Hi
Prove That : cos6A = 32cos^6A - 48cos^4A + 18cos^2A - 1.
There are 20 students in a chemistry class and 30 students in a physics class. find the number of students which are either in physics or in chemistry class in the following cases:
a)two classes meet at the same hour. (hint: n(C∩P) =Φ)
b)The two classes meet at different hours and 10 students are enrolled in both the courses. (hint: n(C∩P)=10)