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Find the amount to be paid at the end of 3 years in each case:
a) Principal $ =₹ 1,200 $ at $ 12 % $ p.a.
b) Principal $ =77,500 at 5 % $p.a.
Given:
a) Principal $ =₹ 1,200 $ at $ 12 % $ p.a. b) Principal $ =77,500 at 5 % $p.a. E
To do: Find the amount to be paid at the end of 3 years in each case:
Solution:  
a) Here, Principal $P =२ 1,200$
RaTE{R}=12%p.a,
Time{T}=3 Years Simple Interest $\frac{P \times R \times T}{100}$
=$\frac{1200 \times 12 \times 3}{100}$
=₹ $432$
Now, Amount = Principal $+$ Simple Interest
=₹ $1200$+₹ $432$
=₹ $1,632$ b) Here, Principal P=₹ $7,500$,
Rate{R}=5% pa,
Time {T}=3 years
Simple Interest =$\frac{P \times R \times T}{100}$
=$\frac{7500 \times 5 \times 3}{100}$
=₹ $1,125$
Now, Amount = Principal $+$ Simple Interest
=₹ 7$,500+₹ 1,125$ =$ ₹ 8,625$ THE TO BE PAID AFTER THREE YEARS IS:
a)₹ $1,632$
b)$ ₹ 8,625$
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