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 photographer purchases 30 rolls of black and white film an
[#permalink]
26 Jul 2018, 10:22
26 Jul 2018, 10:22
Expert Reply
00:00
Question Stats:
100% (01:11) correct
0% (00:00) wrong based on 3 sessions
Hide Show timer Statistics
A photographer purchases 30 rolls of black and white film and 25 rolls of color film. If the cost of each roll of color film is twice the cost of each roll of black and white film, what percent of the total cost of film is the price of a roll of color film?
A. 0.5%
B. 1.25%
C. 2.0%
D. 2.5%
E. 3.0%
Kudos for R.A.E
A. 0.5%
B. 1.25%
C. 2.0%
D. 2.5%
E. 3.0%
Kudos for R.A.E
Re: A photographer purchases 30 rolls of black and white film and 25 rolls
[#permalink]
13 Apr 2021, 01:47
13 Apr 2021, 01:47
1
30 rolls of black and white film & 25 rolls of color film
Let's say cost of black & white film = 1 & of color film = 2
Total cost = 30 * 1 + 25 * 2 = 80
Now %age cost of a roll of color film = \(\frac{2}{80}\) * 100% = 2.50%
Answer D
Let's say cost of black & white film = 1 & of color film = 2
Total cost = 30 * 1 + 25 * 2 = 80
Now %age cost of a roll of color film = \(\frac{2}{80}\) * 100% = 2.50%
Answer D
General Discussion
Re: A photographer purchases 30 rolls of black and white film an
[#permalink]
26 Jul 2018, 19:43
26 Jul 2018, 19:43
2
The Answer is D 2.5 %
Let the cost of B/W be x Dollars , so Cost of Color films = 2x
Total Cost of 30x + 50x = 80x
So Ratio of 1 Color Film to total cost = 2x/80x = 2.5 %
Let the cost of B/W be x Dollars , so Cost of Color films = 2x
Total Cost of 30x + 50x = 80x
So Ratio of 1 Color Film to total cost = 2x/80x = 2.5 %
