ICSE ICSE Class 7 - CISCE Question Bank Solutions for Mathematics

Express the following sets in set- builder notation (form):

{3, 6, 9, 12, 15}

Express the following sets in set- builder notation (form):

{2, 3, 5, 7, 11, 13, ...}

Express the following sets in set- builder notation (form):

{1, 4, 9,16, 25, 36}

Express the following sets in set- builder notation (form):

{0, 2, 4, 6, 8, 10, 12, …. }

Express the following sets in set- builder notation (form):

{Monday, Tuesday, Wednesday}

Express the following sets in set- builder notation (form):

{23, 25, 27, 29, … }

Express the following sets in set- builder notation (form):

`{1/3, 1/4, 1/5, 1/6, 1/7, 1/8}`

Express the following sets in set- builder notation (form):

{42, 49, 56, 63, 70, 77}

Given: A = {x : x is a multiple of 2 and is less than 25}. Write the set in roster form. 

Given: B = {x : x is a square of a natural number and is less than 25}. Write the set in roster form. 

Given: C = {x : x is a multiple of 3 and is less than 25}. Write the set in roster form. 

Given: D = {x: x is a prime number less than 25}. Write the set in roster form. 

State, if the following pair of a set, is disjoint:

{0, 1, 2, 6, 8} and {odd numbers less than 10.

State, if the following pair of a set, is disjoint:

{birds} and {tress}

State, if the following pair of a set, is disjoint:

{x : x is a fan of cricket} and

{x : x is a fan of football}

State, if the following pair of a set, is disjoint:

A = {natural numbers less than 10} and

B = {x : x is a multiple of 5}

State, if the following pair of a set, is disjoint:

{people living in Calcutta} and

{people living in West Bengal}.

State whether the given pair of set is equal or equivalent.

A = {first four natural numbers} and
B = {first four whole numbers}

State whether the given pair of set is equal or equivalent.

A = Set of letters of the word “FOLLOW” and
B = Set of letters of the word “WOLF”.

State whether the given pair of set is equal or equivalent.

E = {even natural numbers less than 10} and

O = {odd natural numbers less than 9}