The ratio of the earnings of P and Q is 9:10. If the earnings of P increases by one-fourth and the earnings of Q decreases by one-fourth, then find the new ratio of their earnings?
Choose the most appropriate option.
A) 4/7  B) 3/2  C) 3/5  D) 9/4  E) 3/1
Let the earnings of P and Q be 9x and 10x respectively.   New ratio = [9x + 1/4 (9x)]/[10x - 1/4 (10x)]   =&gt; 9*(1 + 1/4)/10*(1 - 1/4)   =&gt; 9/10 * (5/4)/(3/4) = 3/2   Answer: 3/2
<result>B</result>
The ratio of the earnings of P and Q is 9:10. If the earnings of P increases by one-fourth and the earnings of Q decreases by one-fourth, then find the new ratio of their earnings?