EBK MATHEMATICS FOR MACHINE TECHNOLOGY
EBK MATHEMATICS FOR MACHINE TECHNOLOGY
8th Edition
ISBN: 9781337798396
Author: SMITH
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 24, Problem 21A
To determine

Each type of cost for all three jobs.

Expert Solution & Answer
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Answer to Problem 21A

Date 9/16:

Rework percentage is 2.7%.

Scrap percentage is 3.6%.

Date 9/17:

Rework percentage is 1.8%.

Scrap percentage is 3.0%.

Date 9/18:

Rework percentage is 3.1%.

Scrap percentage is 2.0%.

Explanation of Solution

Given information:

Below table shows the total pieces manufactured along with rework and scrap defective pieces.

  EBK MATHEMATICS FOR MACHINE TECHNOLOGY, Chapter 24, Problem 21A , additional homework tip  1

Calculation:

We have been given a table with details of total pieces manufactured along with defective pieces.

  EBK MATHEMATICS FOR MACHINE TECHNOLOGY, Chapter 24, Problem 21A , additional homework tip  2

Now we need to find the individual defect percentage for each day. Total pieces manufactured will be base and number of defective pieces will be percentage.

As we know the proportion to find percentage is given as

  PB=R100   where, P=percentage, B= base and R=rate

Date 9/16:

Rework piece =44 i.e. P=44 and total manufactured piece =1650 i.e. B=1650.

Putting these value in standard proportion,

  PB=R100441650=R100                           {Put B=1650 and P=44}Applying cross multiplication,1650R=44×100R=44×1001650R=2.6667R=2.7                                   {Rounding off to 1 decimal places}

Hence, the rework percentage is 2.7%.

Similarly, scrap piece =59 i.e. P=59 and total manufactured piece =1650 i.e. B=1650.

Putting these value in standard proportion,

  PB=R100591650=R100                           {Put B=1650 and P=59}Applying cross multiplication,1650R=59×100R=59×1001650R=3.575757R=3.6                                   {Rounding off to 1 decimal places}

Hence, the scrap percentage is 3.6%.

Date 9/17:

Rework piece =29 i.e. P=29 and total manufactured piece =1596 i.e. B=1596.

Putting these value in standard proportion,

  PB=R100291596=R100                           {Put B=1596 and P=29}Applying cross multiplication,1596R=29×100R=29×1001596R=1.81704R=1.8                                   {Rounding off to 1 decimal places}

Hence, the rework percentage is 1.8%.

Similarly, scrap piece =48 i.e. P=48 and total manufactured piece =1596 i.e. B=1596.

Putting these value in standard proportion,

  PB=R100481596=R100                           {Put B=1596 and P=48}Applying cross multiplication,1596R=48×100R=48×1001596R=3.0075R=3.0                                   {Rounding off to 1 decimal places}

Hence, the scrap percentage is 3.0%.

Date 9/18:

Rework piece =52 i.e. P=52 and total manufactured piece =1685 i.e. B=1685.

Putting these value in standard proportion,

  PB=R100521685=R100                           {Put B=1685 and P=52}Applying cross multiplication,1685R=52×100R=52×1001685R=3.08605R=3.1                                   {Rounding off to 1 decimal places}

Hence, the rework percentage is 3.1%.

Similarly, scrap piece =34 i.e. P=34 and total manufactured piece =1685 i.e. B=1685.

Putting these value in standard proportion,

  PB=R100341685=R100                           {Put B=1685 and P=34}Applying cross multiplication,1685R=34×100R=34×1001685R=2.01750R=2.0                                   {Rounding off to 1 decimal places}

Hence, the scrap percentage is 2.0%.

Thus,

Date 9/16:

Rework percentage is 2.7%.

Scrap percentage is 3.6%.

Date 9/17:

Rework percentage is 1.8%.

Scrap percentage is 3.0%.

Date 9/18:

Rework percentage is 3.1%.

Scrap percentage is 2.0%.

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Chapter 24 Solutions

EBK MATHEMATICS FOR MACHINE TECHNOLOGY

Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Prob. 17ACh. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Prob. 21ACh. 24 - Prob. 22ACh. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Prob. 25ACh. 24 - Prob. 26ACh. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Finding Percentage, Percent, and Base in Practical...Ch. 24 - Prob. 31ACh. 24 - A manufacturer estimates that 15,500 pieces per...Ch. 24 - The average percent defective product of a...Ch. 24 - Prob. 34ACh. 24 - Prob. 35ACh. 24 - The cost of one dozen cutters is listed as $525. A...Ch. 24 - A manufacturer's production this week is 3620...Ch. 24 - Two machines are used to produce the same product....Ch. 24 - Allowing for scrap, a firm produced 1890 pieces....Ch. 24 - A manufacturing company receives $122,000 upon the...Ch. 24 - Prob. 41A
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