It is known that the quality of bananas shipped from fruit shops is 5 times that of mangoes, and the quality of bananas after selling 60 kg is equal to that of mangoes. How many kilograms of bananas did the fruit shop ship?
已知水果店运来香蕉的质量是芒果的5倍，香蕉卖出60千克后和芒果的质量相等．水果店运来香蕉多少千克？
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">15 * 5</gadget>
<output>75</output>

<result>75</result>