GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
A baby has x total toys. If 9 of the toys are stuffed animal
[#permalink]
05 Aug 2018, 14:31
05 Aug 2018, 14:31
2
Expert Reply
4
Bookmarks
00:00
Question Stats:
90% (01:16) correct
9% (02:00) wrong based on 75 sessions
Hide Show timer Statistics
A baby has x total toys. If 9 of the toys are stuffed animals, 7 of the toys were given to the baby by her grandmother, 5 of the toys are stuffed animals given to the baby by her grandmother, and 6 of the toys are neither stuffed animals nor given to the baby by her grandmother, what is the value of x?
Show: :: OA
17
Re: A baby has x total toys. If 9 of the toys are stuffed animal
[#permalink]
07 Aug 2018, 16:55
07 Aug 2018, 16:55
Expert Reply
Explanation
Use the overlapping sets formula for two groups: Total = Group 1 + Group 2 – Both + Neither.
Here, the groups are “stuffed animal” and “given by the baby’s grandmother.” The problem indicates that the “both” category is equal to 5 and that the “neither” number is 6. The total is x.
Total = Group 1 + Group 2 – Both + Neither
x = 9 + 7 – 5 + 6
x = 17
Use the overlapping sets formula for two groups: Total = Group 1 + Group 2 – Both + Neither.
Here, the groups are “stuffed animal” and “given by the baby’s grandmother.” The problem indicates that the “both” category is equal to 5 and that the “neither” number is 6. The total is x.
Total = Group 1 + Group 2 – Both + Neither
x = 9 + 7 – 5 + 6
x = 17
Re: A baby has x total toys. If 9 of the toys are stuffed animal
[#permalink]
30 Nov 2019, 02:45
30 Nov 2019, 02:45
Use the overlapping sets formula for two groups: Total = Group 1 + Group 2 – Both + Neither.
May we solve it without the above rule?
May we solve it without the above rule?
