An air conditioner is currently on sale at a 20% discount. Xiao Ming calculated that if the discount can be reduced to 75% of the original price, it can be reduced by another 150 yuan. How much is the original price of this air conditioner?
一种空调现在打八折出售，小明算了一下，如果能优惠到原价的75%，就可以再降150元，这种空调的原价是多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(4/5) - (3/4)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">150 / (1/20)</gadget>
<output>3_000</output>

<result>3_000</result>