|
|
GMAT 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.
16 Jun 2021, 07:00
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
70% (02:15) correct
30%
(02:06)
wrong
based on 163
sessions
History
Date
Time
Result
Not Attempted Yet
Paul, a painter, paints only flowers or cats in his notebook. The pictures are drawn in either regular pencil or in charcoal (but not in both.) The total number of pictures in Paul's notebook is 39 greater than the number of cat pictures painted in pencil. How many flower pictures drawn in charcoal are there in the notebook?
(1) There are 7 flower pictures drawn in pencil in the notebook.
(2) There are 11 cat pictures drawn in charcoal in the notebook.
(1) There are 7 flower pictures drawn in pencil in the notebook.
(2) There are 11 cat pictures drawn in charcoal in the notebook.
20 Jun 2021, 21:31
Kudos
Bookmarks
given:
x = Cats in pencil
x+39 = total pictures
I. 7 = Flowers in pencil. Not sufficient
II. 11 = Cats in charcoal. Not sufficient.
Both:
Total = Flowers in pencil + Flowers in charcoal + Cats in pencil + Cats in charcoal
x+39 = 7 + ? + x + 11
x+39 = 18 + ? + x
x+21 = x+?
? = 21. Flowers in charcoal = 21. Sufficient
IMO answer is C. Hopefully it is correct
x = Cats in pencil
x+39 = total pictures
I. 7 = Flowers in pencil. Not sufficient
II. 11 = Cats in charcoal. Not sufficient.
Both:
Total = Flowers in pencil + Flowers in charcoal + Cats in pencil + Cats in charcoal
x+39 = 7 + ? + x + 11
x+39 = 18 + ? + x
x+21 = x+?
? = 21. Flowers in charcoal = 21. Sufficient
IMO answer is C. Hopefully it is correct
21 Jun 2021, 03:35
Kudos
Bookmarks
If Paul "paints" only in pencil or charcoal (technically that isn't painting 
), and the number of paintings in total is 39 greater than the number of cat-pencil paintings, then there must be exactly 39 paintings that are cat-charcoal, flower-pencil, or flower-charcoal, because those 39 extra paintings can't be anything else.
So we have 39 paintings divided into three categories. Each statement tells us the number in one category, so neither statement alone will let us solve for the missing category, but using both, we know we have 7 flower-pencil and 11 cat-charcoal paintings, so the remaining 39 - 7 - 11 = 21 must be flower-charcoal, and the answer is C.
When I first read the question, I skipped over the word "cat" in the phrase "is 39 greater than the number of cat pictures painted in pencil", because I almost assumed in advance how the question was going to work. If you delete the word "cat" from that sentence, I think the question becomes more interesting -- then the answer turns out to be B, because we then know we have 39 charcoals from the stem, and just need to know how we're dividing those 39 between cats and flowers. But as written the answer is C.
), and the number of paintings in total is 39 greater than the number of cat-pencil paintings, then there must be exactly 39 paintings that are cat-charcoal, flower-pencil, or flower-charcoal, because those 39 extra paintings can't be anything else.So we have 39 paintings divided into three categories. Each statement tells us the number in one category, so neither statement alone will let us solve for the missing category, but using both, we know we have 7 flower-pencil and 11 cat-charcoal paintings, so the remaining 39 - 7 - 11 = 21 must be flower-charcoal, and the answer is C.
When I first read the question, I skipped over the word "cat" in the phrase "is 39 greater than the number of cat pictures painted in pencil", because I almost assumed in advance how the question was going to work. If you delete the word "cat" from that sentence, I think the question becomes more interesting -- then the answer turns out to be B, because we then know we have 39 charcoals from the stem, and just need to know how we're dividing those 39 between cats and flowers. But as written the answer is C.
