If two-third of $A$ is four-fifth of $B ,$ then $A : B =?$

If $\left(x+\frac{1}{x}\right):\left(x-\frac{1}{x}\right)=5:5$,then the value$(s)$ of $x$ is/are:

What will be $32 \%$ of $(\frac{3}{8})^{th}$ of $1000$?

The ratio of the sum of two numbers and their difference is $5:1$. The ratio of the greater number to the smaller number is

If $A: B = \frac{1}{2}: \frac{3}{8}$,$B: C = \frac{1}{3}: \frac{5}{9}$ and $C: D = \frac{5}{6}: \frac{3}{4}$,then the ratio $A: B: C: D$ is

$A$ man divides his property such that his son's share to his wife's share and his wife's share to his daughter's share are both in the ratio $3:1$. If the daughter gets ₹ $10,000$ less than the son,what is the total value of the property in ₹?