Question

calculate the amount and compound interest on a Rs.10,000 in 3 years , when the rates of interest for successive years be 4% ,6% and 8% respectively.​

Answer 1

Answer:

P = Rs. 10,000

T = 3 yrs

R = 4% , 6% & 8%

A = P × ( 1 + R/100) ³

= Rs. 10,000 × (1+4/100)³

= Rs. 10,000 × 26/25 ×26/25 ×26/25

= Rs. 7,030,400

There fore ,,the amount = Rs. 7,030,400 at the rate of 4%

Compound interest = Amount - 1

= Rs. 7,030,400 - 1 = 7,030,399

Therefore, the compound interest is Rs. 7,030,399

Now you can find at rate 6% & 8% by using this formula