There are 61 mango trees in the park, 3 fewer than 8 times the number of banyan trees. How many banyan trees are there in the park?
公园里有61棵芒果树，比榕树的8倍少3棵．公园里有榕树多少棵？
<gadget id="calculator">61 + 3</gadget>
<output>64</output>

<gadget id="calculator">64 / 8</gadget>
<output>8</output>

<result>8</result>