The common ratio of the G.P. 0.15, 0.015, 0.0015, …… is :

1. 0.1

2. 0.01

3. 1

4. 0.001

The 8th term of the G.P. 1, 3, 9, 27, ………. is :

1. 729

2. 2187

3. 6561

4. none of these