A factory used 120 tons of water in May, and the water consumption in June was 1/4 lower than that in May. How many tons of water was used in June?
某工厂五月份用水120吨，六月份用水量比五月份节约(1/4)，六月份用水多少吨？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">120 * (3/4)</gadget>
<output>90</output>

<result>90</result>