If 146 Is divisible by 5n, and then find the maximum value of n.

Answer: Option B

$$\begin{array}{rl}& \text{Required}\text{answer},\\ & =\frac{146}{5}+\frac{146}{5^2}+\frac{146}{5^3}\\ & =29+5+1\\ & =35\end{array}$$
Note:
We have taken integral value only, not the fractional.
For example $$\frac{146}{5}$$ = 29.2 but we have taken 29 and so on.