If a = {3, 5, 7, 9, 11} and B = {4, 7, 10}, Find: N(B)

If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: n(B)

One Line Answer

n(B) = (4, 7, 10) = 3

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Universal Set

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Chapter 13: Set Concepts (Some Simple Divisions by Vedic Method) - Exercise 13 (D)

Chapter 13 Set Concepts (Some Simple Divisions by Vedic Method)
Exercise 13 (D) | Q 2.2

Which set of numbers could be the universal set for the set given below?

A = set of multiples of 5.

B = set of multiples of 7.

C = set of multiples of 12.

Given the universal set = {x : x ∈ N and x < 20}, find:

C = {x : x is divisible by 4}

Given, universal set = {x : x ∈ N, 10 ≤ x ≤ 35}.
A = {x ∈ N : x ≤ 16} Find: A'

Given, universal set = {x : ∈ N, 10 ≤ x ≤ 35}.
B = {x : x > 29} Find: B'.

Given universal set = {x ∈ Z : -6 < x ≤6}.
N = {n : n is non-negative number}
Find: N'

Given A = {x : x ∈ N and 3 < x ~ 6} and 8 = {x : x ∈ W and x < 4}. Find: A ∪ B

For the universal set {4, 5, 6, 7, 8, 9, 10, 11,12,13} ; find the subset of B = {odd numbers greater than 8}.
Also, find a complement of B.

If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: (A – B) and n(A – B)

If A = {3, 5, 7, 9, 11} and B = {4, 7, 10}, find: n (B)

If P = {x : x is a factor of 12} and Q = {x: x is a factor of 16}, find : n(P)