Kirsty collects small models of animals. The last time she bought some, each one cost $0.45. She saves enough to buy 30 models, but when she goes to the shop, she finds out that the price had increased to $0.50. How many models can she buy now?
Kirsty has 0.45 * 30 = $
<gadget id="calculator">0.45*30</gadget>
<output>13.5</output>
13.50 to spare to buy her models.
She can only buy 13.50 / 0.50 = 
<gadget id="calculator">13.50/0.50</gadget>
<output>27</output>
27 models as the price of each individual model has increased.

<result>27</result>