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Re: At a certain factory, each employee working the second shift [#permalink]
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Bunuel wrote:
Mountain14 wrote:
At a certain factory, each employee working the second shift produced 23 as many widgets as each employee working the first shift. If the first shift has 34 as many employees, what fraction of the total widgets did the second shift produce?[/color]

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


PLEASE CHECK QUESTIONS WHEN POSTING. THANK YOU.

At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8

Pick some smart numbers:

Let the first shift have 3 employee and each produce 3 widgets, so the total number of widgets produced by the first shift is 3*3=9;

Then the second shift would have 4 employees and each second shift employee would produce 3*2/3=2 widgets, so the total number of widgets produced by the second shift employees would be 4*2=8;

The ratio of the second shift production to the total is 8/(9+8)=8/17.

Answer: A.

This question is almost exact copy of the following OG question:
Quote:
At a loading dock, each worker on the night crew loaded 3/4 as many boxes as each worker on the day crew. If the night crew has 4/5 as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load?

(A) 1/2
(B) 2/5
(C) 3/5
(D) 4/5
(E) 5/8


Discussed here: at-a-loading-dock-each-worker-on-the-night-crew-loaded-128407.html



Hi Bunuel,
Did not understand the method. Here is one method which I tried, but is not working. Please help.

Picking smart numbers

let the total number of employees be 12.

1st shift has 3/4 of the total hence 3/4*12 = 9
2nd shift has 3.

2nd shift emp gadgets = 3* (2/3 as they produce 2/3 as many gadgets as 1st shift) = 2
1st shift emp gadgets = 9*1 = 9

total fraction for 2nd shift = 2/11.
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Re: At a certain factory, each employee working the second shift [#permalink]
seabhi wrote:
Bunuel wrote:
Mountain14 wrote:
At a certain factory, each employee working the second shift produced 23 as many widgets as each employee working the first shift. If the first shift has 34 as many employees, what fraction of the total widgets did the second shift produce?[/color]

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


PLEASE CHECK QUESTIONS WHEN POSTING. THANK YOU.

At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8

Pick some smart numbers:

Let the first shift have 3 employee and each produce 3 widgets, so the total number of widgets produced by the first shift is 3*3=9;

Then the second shift would have 4 employees and each second shift employee would produce 3*2/3=2 widgets, so the total number of widgets produced by the second shift employees would be 4*2=8;

The ratio of the second shift production to the total is 8/(9+8)=8/17.

Answer: A.

This question is almost exact copy of the following OG question:
Quote:
At a loading dock, each worker on the night crew loaded 3/4 as many boxes as each worker on the day crew. If the night crew has 4/5 as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load?

(A) 1/2
(B) 2/5
(C) 3/5
(D) 4/5
(E) 5/8


Discussed here: at-a-loading-dock-each-worker-on-the-night-crew-loaded-128407.html



Hi Bunuel,
Did not understand the method. Here is one method which I tried, but is not working. Please help.

Picking smart numbers

let the total number of employees be 12.

1st shift has 3/4 of the total hence 3/4*12 = 9
2nd shift has 3.

2nd shift emp gadgets = 3* (2/3 as they produce 2/3 as many gadgets as 1st shift) = 2
1st shift emp gadgets = 9*1 = 9

total fraction for 2nd shift = 2/11.



This part is wrong. You have to multiply by 4/5 not 3/4
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Re: At a certain factory, each employee working the second shift [#permalink]
why should i multiply with 4/5. Please correct me if I am wrong.
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Re: At a certain factory, each employee working the second shift [#permalink]
seabhi wrote:
why should i multiply with 4/5. Please correct me if I am wrong.



3/4 as many boxes

4/5 as many workers


So 12 should be multiplied with workers not boxes....


~M14
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Re: At a certain factory, each employee working the second shift [#permalink]
Expert Reply
Assume that each employee working the first shift produces 3 widgets. Then each employee working the second shift will produce 2 widgets.

Assume that there are 100 second shift employees. Then there will be 75 first shift employees.

So fraction of total widgets produced by the second shift = [100*2]/[(100*2)+(75*3)] = 200/425 = 8/17.

(A) it is.
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Re: At a certain factory, each employee working the second shift [#permalink]
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My Approach:

Let the number of employees work in the second shift be "x" and the number of widgets produced in 1st shift be w.
Now first shift workers produced -> 3x/4 * w widgets = 3xw/4
Second shift workers produced -> x * 2w/3 widgets = 2xw/3 widgets
Total widgets produced = 3xw/4 + 2xw/3 = 17xw/12. Now the second shift workers produced
2xw/3 * 12/17xw fraction of total 17xw/12 widgets. This comes to 8/17.

Hence option A
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Re: At a certain factory, each employee working the second shift [#permalink]
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.................. First Shift.................... Second Shift
Widgets.........\(\frac{2w}{3} .......................... w\)
Employees...... \(x ................................ \frac{3x}{4}\)
Total.............. \(\frac{2wx}{3} ......................... \frac{3wx}{4}\)

Total Widgets\(= \frac{17wx}{12}\)

Fraction \(= \frac{\frac{2wx}{3}}{\frac{17wx}{12}}\)

Answer \(= \frac{8}{17}\)
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Re: At a certain factory, each employee working the second shift [#permalink]
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No of widgets produced in 1st shift = X
No of people in 1st shift = 3/4 Y

No of widgets produced in 2nd shift = 2/3 X
No of people in 2nd shift = Y

Total no of widgets produced in 1st shift = 3/4 XY and total no of widgets produced in 2nd shift = 2/3 XY

Ratio asked = No of widgets produced in 2nd shift / total no of widgets produced
= 8/17
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Re: At a certain factory, each employee working the second shift [#permalink]
Hi!
The wording of this question confused me and it resulted in the wrong answer.
"If the first shift has 3/4 as many employees" I took as if it referred to the overall number of employees.
So, if the number of employees is 4, than there are 3 employees working the first shift and 1 employee working the second.
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Re: At a certain factory, each employee working the second shift [#permalink]
Bunuel wrote:
Mountain14 wrote:
At a certain factory, each employee working the second shift produced 23 as many widgets as each employee working the first shift. If the first shift has 34 as many employees, what fraction of the total widgets did the second shift produce?[/color]

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


PLEASE CHECK QUESTIONS WHEN POSTING. THANK YOU.

At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8

Pick some smart numbers:

Let the first shift have 3 employee and each produce 3 widgets, so the total number of widgets produced by the first shift is 3*3=9;

Then the second shift would have 4 employees and each second shift employee would produce 3*2/3=2 widgets, so the total number of widgets produced by the second shift employees would be 4*2=8;

The ratio of the second shift production to the total is 8/(9+8)=8/17.

Answer: A.

This question is almost exact copy of the following OG question:
Quote:
At a loading dock, each worker on the night crew loaded 3/4 as many boxes as each worker on the day crew. If the night crew has 4/5 as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load?

(A) 1/2
(B) 2/5
(C) 3/5
(D) 4/5
(E) 5/8


Discussed here: at-a-loading-dock-each-worker-on-the-night-crew-loaded-128407.html


Bunuel,

The OG questions specifically states 'If the night crew has 4/5 as many workers as the day crew' whereas this verities prep questions says 'If the first shift has 3/4 as many employees' makes it confusing. 3/4 as many as TOTAL EMPLOYEES or SECOND SHIFT EMPLOYEES?

Don't you think so too?
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Re: At a certain factory, each employee working the second shift [#permalink]
Mountain14 wrote:
At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


Not sure if this is shortest way to solve this question but it worked for me within 45 seconds:

1st shift emp = x widgets, 2nd shift em = 2/3*x widgets
2nd shift= n emp's, 1st shift = 3/4*n emp's

total widgets (1st shift) = 3/4*n*x, total widgets (2nd shift) - 2/3*n*x

Total widget (both shifts) = (3/4+2/3)*n*x=17/12*n*x

total widgets (2nd shift) = (2/3*n*x)/(17/12*n*x) = 8/17
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Re: At a certain factory, each employee working the second shift [#permalink]
Bunuel wrote:
Mountain14 wrote:
At a certain factory, each employee working the second shift produced 23 as many widgets as each employee working the first shift. If the first shift has 34 as many employees, what fraction of the total widgets did the second shift produce?[/color]

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


PLEASE CHECK QUESTIONS WHEN POSTING. THANK YOU.

At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8

Pick some smart numbers:

Let the first shift have 3 employee and each produce 3 widgets, so the total number of widgets produced by the first shift is 3*3=9;

Then the second shift would have 4 employees and each second shift employee would produce 3*2/3=2 widgets, so the total number of widgets produced by the second shift employees would be 4*2=8;

The ratio of the second shift production to the total is 8/(9+8)=8/17.

Answer: A.

This question is almost exact copy of the following OG question:
Quote:
At a loading dock, each worker on the night crew loaded 3/4 as many boxes as each worker on the day crew. If the night crew has 4/5 as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load?

(A) 1/2
(B) 2/5
(C) 3/5
(D) 4/5
(E) 5/8


Discussed here: at-a-loading-dock-each-worker-on-the-night-crew-loaded-128407.html



exactly bunuel, i thought something was amiss too, because when we dont know how many employees were present in the second half, how can we come to a conclusion. I spent 5 mins solving this because once i tried with 1/4 remaining employees and once with all the employees.
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Re: At a certain factory, each employee working the second shift [#permalink]
I prefer the tabular form for such question ( might be useful for some).

emp widget widget / employee
1st shift 3e/4 w 4w/3e
2nd shift e x 8w/9e

thus x = emp * widget/employee = 8w/9

ratio of x/w+x = (8w/9) / w + (8w/9) = 8/17
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Re: At a certain factory, each employee working the second shift [#permalink]
HarveyS wrote:
At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


If you are running short on time and have to guess the answer, look for options.
Here option D and E and easily be eliminated.

As the widgets produced by 2nd shift employee is 2/3 and there are just 1/4th more employees in 2nd shift the no. of widgets produced must be less than those produced in 1st shift.
So thus we can eliminated option B and C, which leaves us with one correct answer - Option A
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Re: At a certain factory, each employee working the second shift [#permalink]
Expert Reply
HarveyS wrote:
At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


We can let the number of widgets produced by each employee in the first shift = 3 and the number of widgets produced by each employee in the second shift = 2.

We can let the number of employees in the second shift = 4 and the number in the first shift = 3.
The total widgets produced was (3 x 3) + (2 x 4) = 9 + 8 = 17.

So the fraction of widgets produced by the second shift was 8/17.

Answer: A
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Re: At a certain factory, each employee working the second shift [#permalink]
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HarveyS wrote:
At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?

A. 8/17
B. 1/2
C. 8/9
D. 9/8
E. 17/8


The marked sentence might be tricky for some.
it should be the first shift has 3/4 as many employees as second shift.

first shift second shift
widgets made w 2w/3

employee 3x/4 x

fraction = second/total = (2wx/3) / (2wx/3)+(3wx/4) = 8/17

answer A
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Re: At a certain factory, each employee working the second shift [#permalink]
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Re: At a certain factory, each employee working the second shift [#permalink]
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