The school bought 600 boxes of white chalk, four times the amount of colored chalk. How many boxes of colored chalk did you buy?
学校买来白粉笔600盒，是彩色粉笔的4倍，买了彩色粉笔多少盒？
<gadget id="calculator">600 / 4</gadget>
<output>150</output>

<result>150</result>