Teacher Li bought 35 pens at 15 yuan each. If you use this money to buy watercolor pens at 5 yuan each, how many can you buy?
李老师买了35支钢笔，每支15元，如果用这些钱买每支5元的水彩笔，可以买多少支？
<gadget id="calculator">15 / 5</gadget>
<output>3</output>

<gadget id="calculator">35 * 3</gadget>
<output>105</output>

<result>105</result>