The school library has 230 story books, 70 more than science books, and three times the number of comic books. How many comic books are there?
学校图书馆有故事书230本，比科技书多70本，连环画的本数是科技书的3倍．连环画有多少本？
<gadget id="calculator">230 - 70</gadget>
<output>160</output>

<gadget id="calculator">160 * 3</gadget>
<output>480</output>

<result>480</result>