Explanation:

- Asha can complete the work in 6 days, so she does 1/6 of the work each day.

- Bhuvan can complete the work in 9 days, so he does 1/9 of the work each day.

- When working alternately, Asha works on the 1st, 3rd, 5th, etc., and Bhuvan on the 2nd, 4th, 6th, etc.

- Add their contributions in two-day cycles:

- Day 1: Asha does 1/6 of the work.

- Day 2: Bhuvan does 1/9 of the work.

- Total for two days: 1/6 + 1/9 = 3/18 + 2/18 = 5/18 of the work.

- After 6 days (3 cycles), they would have completed:

- 3 cycles × 5/18 per cycle = 15/18 of the work.

- On the 7th day, it's Asha's turn.

- She will do another 1/6 of the work.

- 15/18 + 1/6 = 15/18 + 3/18 = 18/18 = 1 (full work).

- So, the work is completed in 7 days.

Answer: Option 2 - 7 days