Bank account A contains exactly x dollars, an amount that will decrease by 10% each month for the next two months. Bank account B contains exactly y dollars, an amount that will increase by 20% each month for the next two months. If A and B contain the same amount at the end of two months, what is the ratio of x√x to y√y?
Options
A) 4 : 3  B) 3 : 2  C) 16 : 9  D) 2 : 1  E) 9 : 4
Explanation:   Account A has amount after 2 months = 0.9*0.9*x = 0.81*x   Account B has amount after 2 months = 1.2*1.2*y = 1.44*y   0.81*x=1.44*y --&gt; √(x/y)=√(1.44/0.81) = 12/9 = 4/3.   4 : 3ns 4 : 3
<result>A</result>
Bank account A contains exactly x dollars, an amount that will decrease by 10% each month for the next two months. Bank account B contains exactly y dollars, an amount that will increase by 20% each month for the next two months. If A and B contain the same amount at the end of two months, what is the ratio of x√x to y√y?