A box of tea leaves weighs 40 kilograms, which is 10 kilograms less than that of B box (4/5). How many kilograms does B box of tea weigh? (Solution of column equation)
甲箱茶叶重40千克，比乙箱茶叶的(4/5)少10千克，乙箱茶叶有多少千克？(列方程解)
<gadget id="calculator">10 + 40</gadget>
<output>50</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">50 / (4/5)</gadget>
<output>125/2 = around 62.5</output>

<result>125/2 = around 62.5</result>