A fruit shop shipped a batch of apples, sold 40% of them in the morning and 50% in the afternoon. There are 75 kilograms left and not sold out. How many kilograms is this batch of fruit in total?
某水果店运来一批苹果，上午卖出40%，下午卖出50%．还剩75千克没有卖完．这批水果一共有多少千克？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (2/5) - (1/2)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">75 / (1/10)</gadget>
<output>750</output>

<result>750</result>