The original price of the aquarium package ticket is 120 yuan, and now it is 25% off. How much money can I save by going to the aquarium now?
海洋馆套票原价120元，现在七五折优惠．现在去海洋馆能节省多少元？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<result>30</result>