A garment factory makes a set of children's clothing with 1.85m of cloth. How many meters of cloth should be used to make 40 sets of clothes like this?
服装厂做一套儿童服装用布1.85m．做这样的40套服装，至少要用布多少米？
<gadget id="calculator">1.85 * 40</gadget>
<output>74</output>

<result>74</result>