Question

Calculate the principal when time $=10$ years, interest $=$ Rs. $4000$; rate = $5\%$ p.a.

• A. $5000$
• B. $6000$
• C. $7000$
• D. $8000$

Answer 1

Answer: (D)

$8000$

Here, time $=10$ years, interest $=$ Rs. $4000$, rate $=5\%$ p.a.

We know $S.I.=\frac{P\times R\times T}{100}$

$\Rightarrow$ $4000=\frac{P\times 5\times 10}{100}$

$\Rightarrow$ $P=\frac{4000\times 100}{50}=$ Rs. $8000$

$\Rightarrow$ $\text{Principal}=$ Rs. $8000.$