Pipe A can completely fill a tank in 3 hours, pipe B can completely fill the same tank in 42 hours and pipe C can completely fill the same tank in 7 hours. If all of them are run together, how much time (in hours) will they take to fill half of the same tank?

Subject: Mathematics | Topic: Arithmetic | Difficulty: MEDIUM

Options

1. (A) 4
2. (B) 1
3. (C) 3
4. (D) 2

Verified Answer

Option (B): 1

Practice complete mock tests for SSC, Banking & Railway exams at https://testx.in/questions/01a0bf65-236a-7e99-a7ab-aea3d96d2751/pipe-a-can-completely-fill-a