1.

What is the difference betweencompound interests for 2 yearsand 3 years for Rs. 500 at 10%rate compounded annually?1 * 1052 260.503 505.504 165.509:43 AM​

Answer»

<P>Step-by-step explanation:

QUESTION:-

What will be in the difference between compound INTEREST for 2 years and 3 years for ₹500 at 10% rate compounded annually ?

• ₹105

• ₹60.5

• ₹ 505.50

• ₹165.50

Answer:-

Given :-

The principal is ₹500.

The rate is 10% per annum.

The time is 2 years and 3 years.

To find :-

Difference between compound interest of the above amount.

Process :-

Compound Interest for 1st case:-

P = ₹500

R (r) = 10%

T (n) = 2 years

∴CI = P(1+ \frac{r}{100}  {)}^{n}  \\  \\ ⇒CI = 500 (1 +  \frac{10}{100}  {)}^{2}  \\  \\ ⇒CI = 500 ( \frac{110}{100}  {)}^{2}  \\  \\ ⇒CI = 500× \frac{110}{100} × \frac{110}{100}  \\  \\ ⇒CI = ₹605

Compound Interest for 2nd case:-

P = ₹500

R (r) = 10%

T (n) = 3 years

∴ CI = P (1+ \frac{r}{100}  {)}^{n} \\  \\  ⇒CI = 500 (1+ \frac{10}{100}  {)}^{3}  \\  \\ ⇒CI = 500 ( \frac{110}{100}  {)}^{3}  \\  \\ ⇒CI = 500 ×  \frac{110}{100} × \frac{110}{100}  \times  \frac{110}{100}  \\  \\ ⇒CI = ₹665.5

Difference between Interests:-

= ₹( 665.5 - 605 )

= ₹ 60.5 (Ans)

Hope it helps you...

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