Answer:
45 | (or)22 | 1 | days. |
2 | 2 |
Explanation:
Ratio of times taken by A and B = 1 : 3.
The time difference is (3 - 1) 2 days while B take 3 days and A takes 1 day.
If difference of time is 2 days, B takes 3 days.
If difference of time is 60 days, B takes | 3 | x 60 | = 90 days. | ||
2 |
So, A takes 30 days to do the work.
A's 1 day's work = | 1 |
30 |
B's 1 day's work = | 1 |
90 |
(A + B)'s 1 day's work = | 1 | + | 1 | = | 4 | = | 2 | ||
30 | 90 | 90 | 45 |
A and B together can do the work in | 45 | = 22 | 1 | days. |
2 | 2 |
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