John writes 3 stories every week.  Each short story is 50 pages.  He also writes a novel that is 1200 pages each year.  Each sheet of paper can hold 2 pages.  Over 12 weeks, how many reams of paper does he need to buy if a ream contains 500 sheets?
He writes 3*50=
<gadget id="calculator">3*50</gadget>
<output>150</output>
150 pages a week.
That means he writes 150*52=
<gadget id="calculator">150*52</gadget>
<output>7_800</output>
7800 pages of short stories a year.
So he writes 7800+1200=
<gadget id="calculator">7800+1200</gadget>
<output>9_000</output>
9000 pages a year.
So he needs 9000/2=
<gadget id="calculator">9000/2</gadget>
<output>4_500</output>
4500 sheets of paper.
That means he needs 4500/500=
<gadget id="calculator">4500/500</gadget>
<output>9</output>
9 reams of paper.

<result>3</result>