Question

If the SI for 5 years is 3 then the SI for 1 years is ​

Answer 1

Answer:

Ans: Here, in this question, the difference is already given to us and we are required to find the principal amount. And using that principal amount we are required to find the amount compounded after three years. The difference is given for two years. So, the formula will be,

Difference = P(R)²/100²

Now, putting the values into the equation, we will find that,

90 = P(12)²/(100)²

90 x 100²/12² = P

P = Rs. 6250

Now, calculating the compound interest on Rs. 6250 will be,

A = 6250(1 + 12/100)³

A = 6250(112/100)³ => 6250(1.12)³ => Rs. 8780.80