Amulya alone does a piece of work in 2 days and Bindu does it in 6 days
Answer: (b) 3/2 days
Amulya alone can do a piece of work = 2 days
Therefore, Amulya can do a piece of work in a day = 1/2
Bindu can do same piece of work = 6 days
Therefore, Bindu can do same work in a day = 1/6
Amulya and Bindu together can do same work in a day = 1/2 + 1/6
= (3 + 1)/6
Then, Amulya and Bindu together can do same work = 3/2 hours.
Hence, the correct answer is option (b) 3/2 hours.