Given

P = Principal

R = Rate

T = Time

Alisha invested ₹ $75,000$ for $4$ years at $8$%p.a.

 P = ₹ $75,000$, r = $8$%p.a., t = $4$ years

C₁ = (P × r × t)/$100$

= $(75,000\times 8\times 1)/100$

= ₹ $6,000$

P₁ = $75,000+6,000$

= ₹ $81,000$

C₂ = (P × r × t)/$100$

= $(81,000\times 8\times 1)/100$

= ₹ $6,480$

P₂ = $81,000+6,480$

= ₹ $87,480$

Solution:-

C₃ = (P × r × t)/$100$

= $(87,480\times 8\times 1)/100$

= ₹ $6,998.4$

Then, P₃ = $6,998.4+87,480$

= ₹ $94478.4$