barrel originally contained some gasoline. If 26.5 kilograms are poured out first, then 48.2 kilograms are poured out, exactly 90 kilograms of gasoline are left. If 26.5 kilograms are poured out first, and then 48.2 kilograms are poured in, how many kilograms of gasoline are left in the barrel?
一个油桶原来装一些汽油，如果先倒入26.5千克，再倒出48.2千克恰好剩90千克汽油，如果先倒出26.5千克，再倒入48.2千克，桶里还剩多少千克汽油？
<gadget id="calculator">48.2 - 26.5</gadget>
<output>21.7</output>

<gadget id="calculator">90 + 21.7</gadget>
<output>111.7</output>

<gadget id="calculator">111.7 - 26.5</gadget>
<output>85.2</output>

<gadget id="calculator">85.2 + 48.2</gadget>
<output>133.4</output>

<result>133.4</result>