A batch of peanut oil was shipped from the cafeteria. If 1.8 kg is used every day, it can be used for 160 days. If you save 0.3 kg per day, how many days can it be used?
食堂运来一批花生油，如果每天用1.8千克，能用160天．如果每天节约0.3千克，能用多少天？
<gadget id="calculator">1.8 - 0.3</gadget>
<output>1.5</output>

<gadget id="calculator">160 / 1.5</gadget>
<output>106.666667</output>

<gadget id="calculator">1.8 * 106.666667</gadget>
<output>192.000001</output>

<result>192.000001</result>