Jambmaths question:
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 $P\cap Q.$
Option A:
{3}
Option B:
{2, 3}
Option C:
{2,3, 5}
Option D:
{1, 2}
Jamb Maths Solution:
$\begin{align} & P=\{2,3,5\} \\ & Q=\{1,2,3,6,9\} \\ & P\cap Q=\{2,3\} \\\end{align}$
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