A scientist releases balloon from the ground.<br>It reaches a height of 1 $$km$$ in $$1\frac{3}{5}$$ minutes. <hr> What is the average speed of the rising balloon in $$m/min$$? <br> <input min="0" type="number" id="imp6pg156q6_1" class="lineinput" placeholder="?"> $$m/min$$