Question

रु.7500 धनराशि का 2 वर्ष का चक्रवृद्धि ब्याज रू० 927 है। इस गणना में वार्षिक ब्याज दर क्या होगी?
(A) 6%
(B) 8% (C)5.4%
(D)6.5%​

Answer 1

Answer:

hope this will help you

Answer 2

Answer:

(A) 6%

Step-by-step explanation:

Given,

Principal amount, P= Rs. 7500

time,t = 2 years

compound interest = Rs. 927

According to the formula of compound interest,

$C.I\ =\ P(1\ +\ \dfrac{r}{100})^t\ -\ P$

$=>\ 927\  =\ 7500(1\ +\ \dfrac{r}{100})^2\ -\ 7500$

$=>\ 927\ +\ 7500\ =\ 7500(1\ +\ \dfrac{r}{100})^2$

$=>\ 8427\ =\ 7500(1\ +\ \dfrac{r}{100})^2$

$=>\ \dfrac{8427}{7500}\ =\ (1\ +\ \dfrac{r}{100})^2$

$=>\ 1.1236\ =\ (1\ +\ \dfrac{r}{100})^2$

$=>\ \sqrt{1.1236}\ =\ (1\ +\ \dfrac{r}{100})$

$=>\ 1.06\ =\ 1\ +\ \dfrac{r}{100}$

=> r = 6

So, the compound interest rate will be 6% annually.