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) 3/9	B) 3/2	C) 3/5	D) 3/6	E) 3/1
Let the earnings of P and Q be Rs. 9x and Rs. 10x respectively.   New ration = [9x + 1/4(9x)]/[10x - 1/4(10x)]   =&gt; [9x(1 + 1/4)]/[10x(1 - 1/4)]   = 9/10 * (5/4)/(3/4) =&gt; 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?