15 packs of milk powder cost 300 yuan, so how many packs of milk powder can you buy for 480 yuan
15包奶粉共300元，那480元可以买奶粉多少包
<gadget id="calculator">300 / 15</gadget>
<output>20</output>

<gadget id="calculator">480 / 20</gadget>
<output>24</output>

<result>24</result>