$\left(\frac{10.3 \times 10.3 \times 10.3 + 1}{10.3 \times 10.3 - 10.3 + 1}\right)$ is equal to (in $.3$)

If $a+b+c=1$ and $ab+bc+ca=\frac{1}{3}$,then $a:b:c$ is

Which of the following are in descending order of their value?

If $a^{3} b = a b c = 180$,and $a, b, c$ are positive integers,then the value of $c$ is

If $x = \frac{a}{a-1}$ and $y = \frac{1}{a-1}$,then

If $1$ is added to the denominator of a fraction,the fraction becomes $\frac{1}{2}$. If $1$ is added to the numerator of the fraction,the fraction becomes $1$. The fraction is