Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 12)
12.
4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?
Answer: Option
Explanation:
Let 1 man's 1 day's work = x and 1 woman's 1 day's work = y.
| Then, 4x + 6y = | 1 | and 3x + 7y = | 1 | . |
| 8 | 10 |
| Solving the two equations, we get: x = | 11 | , y = | 1 |
| 400 | 400 |
 1 woman's 1 day's work = |
1 | . |
| 400 |
 10 women's 1 day's work = |
 |
1 | x 10 |  |
= | 1 | . |
| 400 | 40 |
Hence, 10 women will complete the work in 40 days.
Discussion:
106 comments Page 11 of 11.
Eno said:
6 years ago
Please, we have been using 1/n for 1 day's work. How come we are now saying that let 1 man's day be x and 4 days be 4x?
Or are we trying to say we have to cram how each examples are used and not to go by the 1/n always?
Or are we trying to say we have to cram how each examples are used and not to go by the 1/n always?
Kermiki Bang said:
6 years ago
Then, 4x + 6y =1/8 and 3x + 7y =1/10.
Solving the two equations,
We get: x = 11/400, y =1/400
Can someone help me with this?
Solving the two equations,
We get: x = 11/400, y =1/400
Can someone help me with this?
Harpreet said:
6 years ago
4 x+6y = 1/8 (I)
3x+7y=1/10.
32x+48y=1....(1)
30x+70y=1....(2)
2x-22y=0
X=11y
4*11y + 6y = 1/8
10y = 1/40.
3x+7y=1/10.
32x+48y=1....(1)
30x+70y=1....(2)
2x-22y=0
X=11y
4*11y + 6y = 1/8
10y = 1/40.
Priya said:
6 years ago
I cannot understand this equation.
4x+6y=1/8.
3x+7y=1/10.
Please explain.
4x+6y=1/8.
3x+7y=1/10.
Please explain.
Jigme said:
5 years ago
Hi,
Could you please show me how did you compute to get x=11/400 & y = 1/400?
Could you please show me how did you compute to get x=11/400 & y = 1/400?
Thanveer said:
4 years ago
You are wrong @Kishor,
Right, Agree with you @Nagu.
Right, Agree with you @Nagu.
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