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08 Jul 2013, 06:18
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12 people are either studying or working or doing both. If 9 people are studying and 7 people are working, how many people are both studying and working at the same time?
the answer is
guys can you help me with this kind of question without usinfg the vann diagramm I saw a sort of table which is veryy userful with this kind of question.
thank you
cc
the answer is
guys can you help me with this kind of question without usinfg the vann diagramm I saw a sort of table which is veryy userful with this kind of question.
thank you
cc
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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08 Jul 2013, 06:25
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clciotola
{Total} = {Studying} + {Working} - {Both} + {Neither}
12 = 9 + 7 - {Both} + 0
{Both} = 4.
Theory on Overlapping Sets:
advanced-overlapping-sets-problems-144260.html
how-to-draw-a-venn-diagram-for-problems-98036.html
DS Overlapping Sets Problems to practice: search.php?search_id=tag&tag_id=45
PS Overlapping Sets Problems to practice: search.php?search_id=tag&tag_id=65
advanced-overlapping-sets-problems-144260.html
how-to-draw-a-venn-diagram-for-problems-98036.html
DS Overlapping Sets Problems to practice: search.php?search_id=tag&tag_id=45
PS Overlapping Sets Problems to practice: search.php?search_id=tag&tag_id=65
Hope it helps.
Also, please read carefully and follow: rules-for-posting-please-read-this-before-posting-133935.html
Zuch
Joined: 25 Jun 2013
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09 Jul 2013, 00:28
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clciotola
Have tried to give a step-wise method to develop the table (see attached excel or pic).
Step#1: Given information: Total studying, Total working, total no. of people and total no. of people not doing anything (which is zero here)
Ste#2: Finding total no. of people not studying and not working i.e. 12-7 and 12-9
Step#3: Finding people who are not studying but working i.e. 3-0
Step#4: Finding people who are studying and working i.e. 7-3
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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Thank you for understanding, and happy exploring!
