Question

The $The-difference- between -C.- I -and -S.- I- in- 3 -years- at -10%- per -annum- is --₹18.60. -Find: A) -The -sum B)- The- Compound- Interest- C) -The -Simple -Interest​$Simple Interest​


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Answer 1

If the difference between compound and simple interest is of three years than,

Difference = 3 x P(R)²/(100)² + P (R/100)³.

Here also, P = principal amount, R = rate of interest.

Answer 2

→ 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

→ So, the compounded amount after three years will be Rs. 8780.80