At,first, there were $$\frac{4}{5}$$ as many boys as girls on a bus. Then, a boy alighted from the bus and a girl boarded the bus. Now, there were $$\frac{5}{7}$$ as many boys as girls on the bus. Find the number of boys and the number of girls on bus now. <hr> There are <input min="0" type="number" id ="imp5pg066q9_1" class="lineinput" placeholder="?" /> boys and <br><input min="0" type="number" id ="imp5pg066q9_2" class="lineinput" placeholder="?" /> girls on the bus now.