Question

If Set A ={ x | x ∈ N, x is an even no and x ≤ 100 } then n(A) is 



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Answer 1

Answer:

n(A) = 50

Step-by-step explanation:

Set A ={ x | x ∈ N, x is an even no and x ≤ 100 }

ie, A is the set of all even natural numbers up to 100

in Roster form,

A = {2,4,6,......,98,100}

clearly n(A) = 50    (there are 50 even numbers ≤ 100 in N)