Question

What amount will sum up to Rs. $6,6550$ at $10$% p.a. in C.I. in $3$ years?

• A. $40000$
• B. $50000$
• C. $60000$
• D. $70000$

Answer 1

Answer: (B)

$50000$

$\Rightarrow$ Here, $A=Rs.66550R=10\%$ and $T=3years$

$\Rightarrow$ $A=P(1+\frac{R}{100}{)}^T$

$\Rightarrow$ $66550=P\times (1+\frac{10}{100}{)}^3$

$\Rightarrow$ $66550=P\times (\frac{11}{10}{)}^3$

$\therefore$ $P=\frac{66550\times 1000}{1331}=Rs.50000$