Definition of a Set

Q.

What is the symbol for an empty set?

Q.

What is the cardinal number of following sets?

The set of hours in a day

Q.

Find the cardinal number of the following set.

$\left\{\text{letters in the word MATRICULATION}\right\}$

Q.

Write the cardinal number for the set $B=\left\{x:x=2n,n\in W,n\le 5\right\}$

Q. If $P=\{P:Pisletterintheword"PERMANENT"\}$. Then n(P) ___.

Q. If $P=\{x:xisletterintheword"PERMANENT"\}$, then find n(P).

Q. Cardinal number of the set A = {x : x is an even prime number} is ____ .

1. Infinite

2. 1

3. 2

4. 0

Q.

Write the cardinal number for the set $C=\left\{a,s,d,f,g,h,j,k,l,z,n\right\}$.

Q. If X = { 1, 3, 5, 7}, then n(X) = _________.

1. 4
2. 3
3. 1
4. 2

Q. It is quite late. I must _______ you.

1. Take leave of
2. Take leave from
3. Make leave of
4. Snatch leave of

Q. The collection of ten most talented writers of India is a set.

1. True
2. False

Q. The cardinality of the set A={letters of the word BANGALORE} is .

1. not defined
2. 9
3. 8

Q. The cardinality of the set A={letters of the word BANGALORE} is .

1. 8
2. 9
3. not defined

Q. If A = {x: x = 2n+1, n ∈ N and 3 ≤ n ≤ 9}, then the cardinality of A is .

1. 3
2. 9
3. 7
4. 6

Q. The collection of all natural numbers less than 10, 000 forms a set.

1. True
2. False

Q. The vowels in the English alphabet form a set.

1. False
2. True

Q. The collection of ten most talented writers of India is a set.

1. True
2. False

Q.

The cardinal number of the set A = {Letters of the word APPLE} is _________.

1. 5
2. 0
3. 4
4. 1