Sets and Relations · Mathematics · COMEDK
Start PracticeMCQ (Single Correct Answer)
COMEDK 2023 Morning Shift
If $$A=\{a, b, c\}, B=\{b, c, d\}$$ and $$C=\{a, d, c\}$$ then $$(A-B) \times(B \cap C)$$ is equal to
COMEDK 2023 Morning Shift
If $$n(A)=p$$ and $$n(B)=q$$, then the numbers of relations from the set $$A$$ to the set $$B$$ is
COMEDK 2023 Evening Shift
Which of the following is a singleton set?
COMEDK 2023 Evening Shift
Let $$X$$ and $$Y$$ be the set of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then $$n(X \cap Y)$$ is equal to...
COMEDK 2023 Evening Shift
In the set $$\mathrm{W}$$ of whole numbers an equivalence relation $$\mathrm{R}$$ is defined as follows $$\mathrm{aRb}$$ iff both $$\mathrm{a}$$ & $$\...
COMEDK 2022
If $$A=\{3,5,7\}$$ and $$B=\{1,2,3,5\}$$, then $$A \times B \cap B \times A$$ is equal to
COMEDK 2021
If A = {1, 2, 5, 6} and B = {1, 2, 3}, then (A $$\times$$ B) $$\cap$$ (B $$\times$$ A) is equal to
COMEDK 2021
Total number of elements in the power set of A containing 15 elements is
COMEDK 2020
In the group $$(G\,{ \otimes _{15}})$$, where $$G = \{ 3,6,9,12\} $$, $${ \otimes _{15}}$$ is multiplication modulo 15, the identity element is
COMEDK 2020
A group (G *) has 10 elements. The minimum number of elements of G, which are their own inverses is
COMEDK 2020
A graph G has m vertices of odd degree and ‘n’
vertices of even degree. Then which of the
following statements is necessarily true?
COMEDK 2020
Which of the following is not a group with
respect to the given operation?