If A = {x : 2 < x < 12} then, what is the cardinal number of A?

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Solution

The correct option is B 9

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Similar questions

Cardinal number of the set A = { x: x is prime number and x < 9} is ____.

T = {x : x

}

T

Cardinal number of the set A = { x: x is prime number and x < 9} is ____.

Find the cardinal number of the following sets :

(i) $A_{1} = {- 2, - 1, 1, 3, 5}$

(ii) $A_{2} = {x : x \in N a n d 3 \leq x < 7}$

(iii) $A_{3} = {p : p \in W a n d 2 p - 3 < 8}$

(iv) $A_{4} = {b : b \in Z a n d - 7 < 3 b - 1 \leq 2}$ $Cardinal~Number~of~set~:The number of elements in a set is called its Cardinal Number.$

A =

x : x

B = {x : x \in W, x \leq 5}

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