(a) Quick Ratio:
\[
\text{Quick Ratio} = \frac{\text{Quick Assets}}{\text{Current Liabilities}}.
\]
Quick Assets exclude inventory.
\[
\text{Quick Assets} = \text{Current Assets} - \text{Inventory} = \rupee4,00,000 - \rupee1,00,000 = \rupee3,00,000.
\]
Current Liabilities = \rupee2,00,000.
\[
\text{Quick Ratio} = \frac{\rupee3,00,000}{\rupee2,00,000} = 1.5 : 1.
\]
\vspace{0.5cm}
(b) Inventory Turnover Ratio:
\[
\text{Inventory Turnover Ratio} = \frac{\text{Cost of Goods Sold (COGS)}}{\text{Average Inventory}}.
\]
Cost of Goods Sold (COGS) is calculated as:
\[
\text{COGS} = \text{Revenue from Operations} \times (1 - \text{Gross Profit Ratio}).
\]
\[
\text{COGS} = \rupee10,00,000 \times (1 - 0.2) = \rupee10,00,000 \times 0.8 = \rupee8,00,000.
\]
Average Inventory = \rupee1,00,000 (given).
\[
\text{Inventory Turnover Ratio} = \frac{\rupee8,00,000}{\rupee1,00,000} = 8 \text{ times}.
\]
\vspace{0.5cm}
Summary Table for Inventory Turnover Ratio:
\[
\begin{array}{|l|r|}
\hline
Particulars & Amount (\rupee)
\hline
\text{Revenue from Operations} & 10,00,000
\hline
\text{Gross Profit Ratio} & 20\%
\hline
\text{Cost of Goods Sold (COGS)} & 8,00,000
\hline
\text{Average Inventory} & 1,00,000
\hline
\text{Inventory Turnover Ratio} & 8 \text{ times}
\hline
\end{array}
\]
\vspace{0.5cm}