Step 1: Calculate Normal Profits
\[
{Normal Profits} = {Capital Employed} \times {Normal Rate of Return}
\]
\[
= Rs.7,00,000 \times \frac{10}{100} = Rs.70,000
\]
Step 2: Calculate Super Profits
\[
{Super Profits} = {Average Profits} - {Normal Profits}
\]
\[
= Rs.90,000 - Rs.70,000 = Rs.20,000
\]
Step 3: Calculate Goodwill
\[
{Goodwill} = {Super Profits} \times {Years of Purchase}
\]
\[
= Rs.20,000 \times 5 = Rs.1,00,000
\]