It takes 30 minutes to make pizza dough and another 30 minutes in the oven for the pizza to cook. If one batch of pizza dough can make 3 pizzas but the oven can only fit 2 pizzas at a time, how many hours would it take for Camilla to finish making 12 pizzas?
Camilla needs 12/3 = 
<gadget id="calculator">12/3</gadget>
<output>4</output>
4 batches of pizza dough.
4 batches of pizza would require 30 x 4 = 
<gadget id="calculator">4*30</gadget>
<output>120</output>
120 minutes.
Camilla needs to bake the pizzas 12/2 = 
<gadget id="calculator">12/2</gadget>
<output>6</output>
6 times
6 times in the oven would take 30 x 6 =
<gadget id="calculator">6*30</gadget>
<output>180</output>
180 minutes.
Altogether, it would take 120 + 180 = 
<gadget id="calculator">120+180</gadget>
<output>300</output>
300 minutes to finish making 12 pizzas
300 minutes is 300/60 = 
<gadget id="calculator">300/60</gadget>
<output>5</output>
5 hours.

<result>5</result>