Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 21)
21.
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:
Answer: Option
Explanation:
| 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.
Discussion:
68 comments Page 7 of 7.
Manohar said:
6 years ago
Simply:
6:3:1 = 9
9*2 = 18.
18/3 = 6.
6:3:1 = 9
9*2 = 18.
18/3 = 6.
(3)
Aadhi said:
7 years ago
@Ajay.
How to find efficiency ratio?
How to find efficiency ratio?
(1)
Keyan said:
1 decade ago
How to solve it in 1:2:3 basis?
Apeksha said:
1 decade ago
Why 12 is divided by 2 in last?
Kaviya said:
1 decade ago
How to comes the 1/x+2/x+3/x?
Nwbeen said:
8 years ago
Where did 1/2 come from?
Afua said:
2 decades ago
Where's 6 coming from?
Ritanjali natua said:
2 decades ago
1/x+2/x+3/x=6/x
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