There are 4 different roads from A to B, and 6 different roads from B to C, so how many different roads are there from A to B to C? How many
从甲地到乙地有4条不同的路，从乙地到丙地有6条不同的路，那么从甲地经乙地到丙地共有多少条不同的路？多少
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>