The 50 students of the bouquet team stand in a row, each occupying 0.4 meters, and the distance between each two is 0.5 meters. How many meters is the total length of this row?
花束队的50名同学站成一排，每人占取0.4米，每两人之间相距0.5米，这排队伍共长多少米．
<gadget id="calculator">50 - 1</gadget>
<output>49</output>

<gadget id="calculator">49 * 0.5</gadget>
<output>24.5</output>

<gadget id="calculator">50 * 0.4</gadget>
<output>20</output>

<gadget id="calculator">24.5 + 20</gadget>
<output>44.5</output>

<result>44.5</result>