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 flock consists of black and white sheep.
[#permalink]
21 Sep 2019, 08:07
21 Sep 2019, 08:07
1
00:00
Question Stats:
57% (01:35) correct
42% (00:42) wrong based on 21 sessions
Hide Show timer Statistics
A flock consists of black and white sheep. At the beginning of the year, the shepherd had 300 sheep of which 15% were black, and at the end of the year, he had 400 sheep of which 10% were black. What is the percentage of black sheep over the year (approximately)?
A)Increased by 11%
B)Decreased by 5%
C) Increased by 5%
D)Decreased by 11%
E) Did not change
A)Increased by 11%
B)Decreased by 5%
C) Increased by 5%
D)Decreased by 11%
E) Did not change
Re: A flock consists of black and white sheep.
[#permalink]
21 Sep 2019, 08:09
21 Sep 2019, 08:09
I understand the explanation. But the question is not clear of the needed. I thought it requires The % change overall not the black sheep change of the black sheep.
How do I don't fall in that trap again
How do I don't fall in that trap again
Re: A flock consists of black and white sheep.
[#permalink]
24 Sep 2019, 02:40
24 Sep 2019, 02:40
Expert Reply
\(300 \times 0.15 =45\)
\(400 \times 10 = 40\)
\(\frac{45-40}{45} \approx 11\) %
regards
\(400 \times 10 = 40\)
\(\frac{45-40}{45} \approx 11\) %
regards
