passpadi

2012

Mathematics

JAMB

If P is a set of all prime factors of 30 and Q is a set of all factors of 18 less than 10, find P ∩ Q

A.

{3}

B.

{2,3}

C.

{2,3,5}

D.

{1,2}

Correct Answer: {2,3}

Explanation

P = {2,3,5} Q = {2,3,6,9} P ∩ Q = {2,3}

P = {2,3,5} Q = {2,3,6,9} P ∩ Q = {2,3}
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