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Operation on sets Venn Diagrams MATHS - Operation on sets Venn Diagrams

ICSE - STD 8 - MATHS (ICSE - English Medium). 23 questions in this chapter.

Question types

Operation on sets Venn Diagrams question types

23 questions across 3 question groups — pick any mix to generate a MATHS paper with step-by-step answer keys.

23
Questions
3
Question groups
5
Question types
Sample Questions

Operation on sets Venn Diagrams questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1TRUE / FALSE1 Mark
If $ξ = \{$all digits in our number system$\}, A = \{$multiples of $2\}$ and $B = \{$multiples of $3\}$, then $A ∩ B = \{6\}.$
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Q 10MCQ1 Mark
In a town of $840$ persons, $450$ persons read Hindi, $300$ read English and $200$ read both. Then the number of person who read neither is
  • A
    $180$
  • B
    $210$
  • C
    $260$
  • ✓
    $290$

Answer: D.

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Q 11MCQ1 Mark
If $A$ and $B$ are two sets such that $n(A) = 22, n(B) = 18$ and $n(A ∪ B) = 35$, then $n(A ∩ B)$
  • A
    $4$
  • ✓
    $5$
  • C
    $15$
  • D
    $75$

Answer: B.

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Q 12MCQ1 Mark
If $ξ = ($all digits in our number system$), A = \{x | x$ is prime$\}$ and $B = \{x | x$ is even$\}$, then $B – A$  is
  • A
    $\{4, 6, 8\}$
  • ✓
    $\{0, 4, 6, 8\}$
  • C
    $\{3, 5, 7\}$
  • D
    $\{2\}$

Answer: B.

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Q 13MCQ1 Mark
If $ξ= \{x | x \in W, x \leq 12\}, A – \{x | x$ is a multiple of $3\}$ and $B = \{x | x$ is a multiple of $4\},$  then $A ∩ B$ is
  • A
    $ϕ$
  • B
    $\{0\}$
  • C
    $\{12\}$
  • ✓
    $\{0, 12\}$

Answer: D.

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Q 14MCQ1 Mark
If $ξ = W$ and $A = \{x | x \in W$ and $x \leq 10\}$, then $A\ ’$ is
  • A
    $ϕ$
  • B
    $\{x | x \in W$ and $0 ≤ x ≤ 10\}$
  • C
    $\{x | x\ ϵ\ W$ and $x ≤ 10\}$
  • ✓
    $\{x | x\ ϵ\ W$ and $x ≥ 11\}$

Answer: D.

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