ICSE ICSE Class 7 - CISCE Question Bank Solutions

State true or false of the following statement:

All examples of the empty set are equal.

State true or false of the following statement:

All examples of the empty set are equivalent.

State true or false of the following statement:

If two sets have the same cardinal number, they are equal sets.

State true or false of the following statement:

If n (A) = n (B) then A and B are equivalent sets

State true or false of the following statement:

If B = {x : x + 4 = 4}, then B is the empty set.

State true or false of the following statement:

The set of all points in a line is a finite set.

State true or false of the following statement:

The set of letters in your Mathematics book is an infinite set.

State true or false of the following statement:

If M = {1, 2, 4, 6} and N = {x : x is a factor of 12} ; then M = N.

State true or false of the following statement:

The set of whole numbers greater than 50 is an infinite set.

State true or false of the following statement:

If A and B are two different infinite sets, then n (A) = n (B).

Which of the following represent the null set?

φ, {0}, 0, { }, {φ}

If A = {5, 7, 8, 9}; then B = {5, 8} is a subset of A?

If A = {5, 7, 8, 9}; then C = {0} is a subset of A?

If A = {5, 7, 8, 9}; then D = {7, 9, 10} is a subset of A?

If A = {5, 7, 8, 9}; then E = { } is a subset of A?

If A = {5, 7, 8, 9}; then F = {8, 7, 9, 5} is a subset of A?

If P = {2, 3, 4, 5}; then A = {3, 4} is proper subset of P?

If P = {2, 3, 4, 5}; then B = { } is proper subset of P?

If P = {2, 3, 4, 5}; then C = {23, 45} is proper subset of P?

If P = {2, 3, 4, 5}; then D = {6, 5, 4} is proper subset of P?