There is a group of bees in the garden, of which (1/5) landed on the rhododendron, (1/3) landed on the gardenia, the difference between the two groups of bees was 3 times, the bees flew to the rose flower, and the last bee Flying between jasmine and magnolia. How many bees are there in the garden?
花园里有一群蜜蜂，其中(1/5)落在杜鹃花上，(1/3)落在栀子花上，这两批蜜蜂的差的3倍的蜜蜂飞向月季花，最后一只蜜蜂在茉莉花和玉兰花之间飞来飞去．花园有多少蜜蜂？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) - (1/5)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(2/15) * 3</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (1/5) - (1/3) - (2/5)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 / (1/15)</gadget>
<output>15</output>

<result>15</result>