Three employees and four intems can complete a task in 8 days.
While four employees and three in terms can do the same work in
81/3 days. In how many days can two employees and one intem
do the work?
Answers
Answered by
9
Let employees be x and interns be y
In the first case three employees and four intern did the work in 8 days then equation for this case will be 3x+4y=8
In the later case same work took 81/3=27days by four employees and three interns so equation for this case will be 4x+3y=27
On solving both the equation and multiplying first equation by 3 and second by 4
We get 9x+12y=24
- 16x+12y=108
To elimante y
This will give - 7x=-84
X=12
By puting x value in first equation we get y=-7
Thus for the case when two employees and one intern the equation will be
2x+y=2(12)+(-7)=24-7=17days
Ans:-17
Answered by
35
Answer:
20 days
Step-by-step explanation:
Attachments:
Similar questions