55.
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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:
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4 days
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6 days
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|
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8 days
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12 days
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Answer: Option B
Explanation:
Suppose A, B and C take x,
|
x
|
and
|
x
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days respectively to finish the work.
|
2
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3
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Then,
|
|
1
|
+
|
2
|
+
|
3
|
|
=
|
1
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x
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x
|
x
|
2
|
x = 12.
So, B takes (12/2) = 6 days to finish the work.
Title : Time And Work Q55
Description : 55. 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 i...
Rating : 5
