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Question

Let S be an infinite set and S1, S2,Sn be sets such that S1S2Sn=S. Then

A
At least one of the sets S1 is a finite set
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B
Not more than one of the sets S1 can be finite
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C
At least one of sets S1 is infinite
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D
Not more than one the sets S1 is an infinite set.
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Solution

The correct option is C At least one of sets S1 is infinite
S=S1S2S3Sn
For S to be infinite set, atleast one of sets Si must be infinite, since if all Si were finite, then S will also be finite.

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