# How Much Time Shall B Take to do it Alone? If

To complete a work A take 50% more time than B. If together they take 18 days to complete thee work. How much time shall B take to do it alone?

- 30 days
- 35 days
- 40 days
- 45 days

**Answer: (4) 45 days
Explanation:-**

Let be the B take time to complete the work = X days

and A take time to complete the work = 3X/2 days

Both together can work = 1/X + 2/3X = 18

= (3 + 2)/3X = 18

5/3X = 18

X = 18 x 5/3

X = 30 days

Then, A can work complete = 30 x 3/2 = 45 days

Hence, the answer is 45 days.