if A={x:x is a factor of 20}, then find n (A).
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2
Answer:
Step-by-step explanation:
A = {x : x is a factor of 20}
A = {1 , 2 , 4 , 5 , 10}
Because 1 , 2 , 4 , 5 and 10 are the factors of 20.
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ANSWER
Given
A = { x:x is a factor of 20 }
Possible values of x = All factors of 20
=> n ( A ) = 1, 2, 4, 5, 10 , 20
Total no: of outcomes = 6
Therefore, n(A) = 6.
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