The total weight of the three baskets of apples is 120 catties. If you take 15 catties from the first basket and put them in the second basket, take 8 catties from the second basket and put them in the third basket, and take 2 catties from the third basket and put them in the first basket. At this time, the weights of the three baskets of apples are equal. How many kilograms of apples are in the second basket?
三筐苹果共重120斤，如果从第一筐中取出15斤放入第二筐，从第二中取出8斤放入第三筐，从第三筐中取出2斤放入第一筐，这时三筐苹果的重量相等，问原来第二筐中有苹果多少斤？
<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">15 - 8</gadget>
<output>7</output>

<gadget id="calculator">40 - 7</gadget>
<output>33</output>

<result>33</result>