If A = { 2 , 3 , 5 , 7 , 11 } and B = { 1, 3, 5, 7, 9,

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If A = { 2 , 3 , 5 , 7 , 11 } and B = { 1, 3, 5, 7, 9, 11} then what is the value of A ? B ?

1. { 2, 3, 5, 7, 11 }
2. { 1, 3, 5, 7, 9, 11}
3. { 3, 5, 7, 11}
4. { 2, 3, 5, 7, 9, 11}

Correct Option: C

As we know that A ? B consists of the all numbers that are common in both the sets A and B.
The common numbers in the set A and B are 3 , 5 , 7, 11.
Hence the answer will be { 3, 5, 7, 11}.