A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:

[A]. 4 days

[B]. 6 days

[C]. 8 days

[D]. 12 days

✅ The correct answer is option B.
Suppose A, B and C take x,
x
and
x
days respectively to finish the work.

2
3

Then,

1
+
2
+
3

=
1

x
x
x
2

6
=
1

x
2

x = 12.
So, B takes (12/2) = 6 days to finish the work.

125. A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in: