There are 150 students in the fifth grade. The number of students in class one is (1/3) of the number of students in this grade, and the number of students in class two is (4/5). How many students are there in class two?
五年级有学生150人，一班的学生数是这个年级学生数的(1/3)，二班的学生数是一班的(4/5)，二班有学生多少人？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">150 * (1/3) * (4/5)</gadget>
<output>40</output>

<result>40</result>