There are 64 students in the art group of Dongda Street Primary School, and the number of boys is 60% of that of girls. How many boys are there in the art group?
东大街小学美术组共有64人，男生人数是女生的60%．美术组男生有多少人？
<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">64 * (3/8)</gadget>
<output>24</output>

<result>24</result>