There are 240 chrysanthemums in the flower shop, twice as many as lilies, and 20 more roses than three times as many lilies. How many roses are there?
花店里有菊花240朵，是百合花的2倍，玫瑰花的朵数比百合花的3倍还多20朵．玫瑰花有多少朵？
<gadget id="calculator">240 / 2</gadget>
<output>120</output>

<gadget id="calculator">120 * 3</gadget>
<output>360</output>

<gadget id="calculator">360 + 20</gadget>
<output>380</output>

<result>380</result>