There are 46 students rowing boats, and they take a total of 10 boats (every boat is full), among them, each big boat takes 6 people, and each small boat takes 4 people, so how many big boats are there?
有46名同学划船，一共乘坐10条船(每条船都满座)，其中大船每条坐6人，小船每条坐4人，则大船有多少条．
<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">46 - 40</gadget>
<output>6</output>

<gadget id="calculator">6 - 4</gadget>
<output>2</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>