Correct Answer - Option 3 : Both 1 and 2

**Concept:**

Multiplying or dividing with a non-zero number does not change the common ratio of the G.P

**Calculation:**

Multiplying or dividing with a non-zero number does not change the common ratio of the G.P

Let us consider sequence a1, a2, a3 …. an is a G.P.

Common ratio = r = \(\rm a_2\over a_1 \) = \(\rm a_3\over a_2 \) = \(\rm a_n\over a_{n-1} \)

If each term is multiplied/ divided by the same non-zero number it will be the same r value. So, the sequence will not change.