# Then A alone can complete the whole work in :

In two days A, B and C together can finish ½ of a work and in another 2 days B and C together can finish 3/10 part of the work. Then A alone can complete the whole work in

- 15 days
- 12 days
- 14 days
- 10 days

**Answer: (4) 10 days**

**Explanation:-**

A, B and C together can finish 1/2 of a work = 2 days

Therefore, A, B and C together can finish a work = 2 x 2

= 4 days

B and C together can finish 3/10 part of the work = 2 days

Therefore, B and C can finish 3/10 part of the work = 10 x 2/3

= 20 /3 days

So, A alone can complete the whole work = 20/(5 – 3)

= 20 /2

= 10 days

Hence, the correct answer is option (4) 10 days.