There are 720 students in Hongguang Primary School, 40 more than five times the number of students in Jiefang Primary School. How many students did Hongguang Primary School have at the beginning of liberation?
红光小学有学生720人，比解放初学生人数的5倍还多40人．红光小学解放初有学生多少人？
<gadget id="calculator">720 - 40</gadget>
<output>680</output>

<gadget id="calculator">680 / 5</gadget>
<output>136</output>

<result>136</result>