A total of 1,550 pots of chrysanthemums, roses and orchids are placed in a square. The ratio of the number of pots of chrysanthemums to roses is 6:5, and there are 50 more pots of roses than orchids. How many pots are there for orchids?
某广场共摆放菊花、月季与兰花1550盆，菊花与月季的盆数之比为6：5，月季比兰花多50盆，求兰花多少盆？
<gadget id="calculator">1_550 + 50</gadget>
<output>1_600</output>

<gadget id="calculator">6 + 5 + 5</gadget>
<output>16</output>

<gadget id="calculator">5 / 16</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">1_600 * (5/16)</gadget>
<output>500</output>

<gadget id="calculator">500 - 50</gadget>
<output>450</output>

<result>450</result>