Ashok lent out ₹ 7,000 at 6% and ₹ 9,500 at 5%. Find his total income from the interest in 3 years.

₹ 5,000 is put in a bank at 5% simple interest. The amount at the end of 2 years will be :

1. ₹ 250

2. ₹ 500

3. ₹ 5,500

4. ₹ 4,500

A sum of money triples itself in 20 years. The rate of interest is:

1. 20%

2. 10%

3. 5%

4. 15%