The original price of a ballpoint pen is 4.8 yuan each, but now it is 4.5 yuan each. How many pens can you buy now with the money you used to buy 150 pens?
一种圆珠笔原价每支4.8元，现在每支4.5元，原来买150支笔的钱，现在可以买多少支？
<gadget id="calculator">150 / 4.5</gadget>
<output>33.333333</output>

<gadget id="calculator">4.8 * 33.333333</gadget>
<output>159.999998</output>

<result>159.999998</result>