The simple interest on a sum of money for 2 years at 10% p.a. is ₹ 1,700. Find:

(i) the sum of money,

(ii) the compound interest on this sum for 1 year, payable half yearly at the same rate.

Calculate the amount and the compound interest on ₹ 10,000 for 2 years at 8% p.a., compounded annually.

How much will ₹ 12,000 amount to in 2 years at compound interest, the rates of interest for successive years being 10% and 11% respectively ?

Calculate the amount and the compound interest on ₹ 25,000 for 3 years, the rates of interest for the successive years being 8%, 9% and 10%, compounded annually.