MHT-CET

Sets and Relations question bank (Mathematics)

Practice 15 free MHT-CET Mathematics - Sets and Relations questions with answers and step-by-step solutions.

Q1.

Let $S$ be a non-empty subset of $\mathbb{R}$. Consider the following statement: p : There is a rational number $x \in \mathrm{~S}$ such that $x\gt0$. Which of the following statements is the negation of the statement p?

(A)
There is a rational number $x \in \mathrm{~S}$ such that $x \leq 0$.
(B)
There is no rational number $x \in \mathrm{~S}$ such that $x \leq 0$.
(C)
Every rational number $x \in \mathrm{~S}$ satisfies $x \leq 0$.
(D)
$x \in \mathrm{~S}$ and $x \leq 0 \Rightarrow x$ is not a rational number.
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Q2.

If $n(A)=4, n(B)=2$. Then the number of subsets of the set $\mathrm{A} \times \mathrm{B}$ each having at least 3 elements are

(A)
275
(B)
510
(C)
219
(D)
256
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