The store sells two baskets of apples with the same unit price. The first basket sells for 75 yuan, and the second basket sells for 84 yuan. The price per kilogram of apples is 3 yuan. How many kilograms more apples are in the second basket than in the first basket?
商店卖出两筐单价相同的苹果，第一筐卖了75元，第二筐卖出了84元，每千克苹果的价钱是3元，第二筐苹果比第一筐多多少千克？
<gadget id="calculator">84 - 75</gadget>
<output>9</output>

<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>