A construction site needs 240 tons of cement, 150 tons are transported by 5 vehicles at one time, and the remaining 3 tons are transported each time, how many times will it be transported?
某工地需水泥240吨，用5辆汽车一次运走了150吨，剩下的每次运3吨，需运多少次才能运完？
<gadget id="calculator">240 - 150</gadget>
<output>90</output>

<gadget id="calculator">90 / 3</gadget>
<output>30</output>

<result>30</result>