The farmer's uncle sells 150kg of apples, which is 30kg less than that of pears (9/10). How many kilograms of pears are sold?
农民伯伯卖出苹果150kg，比卖出梨的(9/10)少30kg．卖出梨多少千克？
<gadget id="calculator">150 + 30</gadget>
<output>180</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">180 / (9/10)</gadget>
<output>200</output>

<result>200</result>