Question

the difference between the compound interest and the simple interest on a certain sum of money at 15% per annum for 3 years is rupees 283. 50 find the sum​

Answer 1

Answer:

So sum = 4000 rupees

Step-by-step explanation:

Given that

interest rate r= 15 %

time n= 3 year

Compound interest - simple interest = 283.50 rupees

As we know that the difference between compound and simple interest for three year given as follow

$CI - SI=P\times r^2\times\dfrac{300+r}{100^3}$

Now by putting the value

$CI - SI=P\times r^2\times\dfrac{300+r}{100^3}$

$283.5=P\times 15^2\times\dfrac{300+15}{100^3}$

P= 4000 rupees

So sum = 4000 rupees