If compound interest for 4th year is Rs.3000 @ 10% p.a. then find the compound interest for 8th year.

Rs. 3993 Rs. 1461.1 Rs. 4392.3 Rs. 1331.2

Rs. 4392.3

10% = \(\frac{1}{10}\) Ratio of Principal to Amount = 10 : 11          4th Year   :     8th Year              104      :       114 ⇒        10000    :     14641 ⇒ 10000R = 3000 (given) ⇒ 1R = \(\frac{3}{10}\) ⇒ 14641R = 14641 × \(\frac{3}{10}\) = 4392.3/-