Introduction to Set

The fast breeder reactor uses the following moderator

Write three examples of sets from your daily life.

$A$ is the set of all factors of $12$. Which of the following is not a member of $A$?

If $R$ is the set of real numbers and $Q$ is the set of rational numbers, then what is $R-Q ?$

Let $A=\{3,6,12,15,18,21\},B=\{4,8,12,16,20\},C=\{2,4,6,8,10,12,14,16\}$ and  $D=\{5,10,15,20\}$. Find

$D-C$

Let $A=\{3,6,12,15,18,21\},B=\{4,8,12,16,20\},C=\{2,4,6,8,10,12,14,16\}$ and  $D=\{5,10,15,20\}$. Find

$D-B$

Let $A=\{3,6,12,15,18,21\},B=\{4,8,12,16,20\},C=\{2,4,6,8,10,12,14,16\}$ and  $D=\{5,10,15,20\}$. Find

$C-B$

If $A=(-7,3]$, $B=[2,6]$ and $C=[4,9]$ Then find $A-B$

If $A=(-7,3]$, and $C=[4,9]$, then find $A\cap C$.

If $U=\{x/x\in \mathrm{N},1\le x\le 12\}$, $\mathrm{B}=\{2,4,6,7,11\}$ and $C=\{3,5,8,9,12\}$. Then $B\cap C^{\text{'}}=$

If $U=\{x/x\in \mathrm{N},1\le x\le 12\}$, $\mathrm{A}=\{1,4,7,10\}, \mathrm{B}=\{2,4,6,7,11\}$. Then $A-B=$

If $\mathrm{B}=\{2,4,6,7,11\}$ & $C=\{3,5,8,9,12\}$, then $B\cap C=$

If $A$and $B$ are subsets of a universal set $X$ and $n\left(X\right)=50, n\left(A\right)=35, n\left(B\right)=20, n\left(A^{\text{'}}\cap B^{\text{'}}\right)=5$

Find $n\left(A\cap B^{\text{'}}\right)$

If $a\in N$ such that $aN=\{ax:x\in N\}$ find $3N\cap 7N$

Q = {Ш, Ẅ, И, Л} is the same as 

P is a set of the letters of the word, “RACECAR”.
How many elements are there in the above set?

Sets {b,u,b,b,l,e} is the  same as Set {b,u,l,e}
Is this statement true or false?

Anand, Joel, Raja, Rani, Ram, Khan, Arun, Babu, went to play station to celebrate Mary’s birthday.
Joel, Raja, Rani and Arun played bike race while Babu and Anand played neither car race nor bike race.
Raja, Rani, Khan, Ram and Mary played car race.
Choose the set M of the people who played the car race as well as the bike race.

Anand, Joel, Raja, Rani, Ram, Khan, Arun, Babu, went to play station to celebrate Mary’s birthday.
Joel, Raja, Rani and Arun played bike race while Babu and Anand played neither car race nor bike race.
Raja, Rani, Khan, Ram and Mary played car race.
Choose the set M of people who played neither car race nor bike race.

Anand, Joel, Raja, Rani, Ram, Khan, Arun, Babu, went to play station to celebrate Mary’s birthday.
Joel, Raja, Rani and Arun played bike race while Babu and Anand played neither car race nor bike race.
Raja, Rani, Khan, Ram and Mary played car race.
Choose the set M of people who played bike race