Divide ₹ 9,000 into two parts in such a way that S.I. on one part at 16% p.a. and in 2 years is equal to the S.I. on the other part at 6% p.a. and in 3 years.

A sum of ₹ 2,000 is put at 10% compound interest. The amount at the end of 2 years will be :

1. ₹ 400

2. ₹ 420

3. ₹ 2420

4. ₹ 4,840

The difference between C.I. and S.I. on ₹ 6,000 at 8% per annum in both the cases and in one year is:

1. ₹ 480

2. nothing

3. ₹ 240

4. none of these