|
|
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.
28 Jun 2016, 07:10
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
65% (02:49) correct
35%
(02:51)
wrong
based on 139
sessions
History
Date
Time
Result
Not Attempted Yet
A photo-mat shop charges $0.55 for the first photo inside a film, and 40% cents less for each additional photo. How many photos can we develop with $52.58 if each film contains 36 photos?
A. 4 films and 12 photos
B. 5 films and 6 photos
C. 5 films and 14 photos
D. 6 films and 4 photos
E. 6 films and 28 photos
A. 4 films and 12 photos
B. 5 films and 6 photos
C. 5 films and 14 photos
D. 6 films and 4 photos
E. 6 films and 28 photos
28 Jun 2016, 07:46
Kudos
Bookmarks
Bunuel
1st photo = 0.55
Subsequent = 0.55*0.6=0.33
Price of 1 full film=0.55+0.33*35=12.1
Price of 4 full film = 12.1*4=48.4
52.58-48.4=4.18
4.18=0.55+0.33x
x=11
52.58--->4 full films and 1+11=12 photos
Answer: A
Shortcut:
Price of 1 full film is 12.1 so we cannot have 5 full films as 12.1*5=60.5 and we need 52.58. Only option A seems valid.
13 Aug 2020, 09:32
Kudos
Bookmarks
First photo = $0.55.
Additional photo (40% less which means 60% of0.55) = \(\frac{60}{100}\)*0.55 = $0.33.
1 full film has 36 photos which means: 1 + 35 additional photos.
Cost of 1 full film = 1(0.55) + 35 (0.33) = 0.55+11.55 = $ 12.10.
Total expense: $52.58.
Just looking at the integer value of $12.10 and $ 52.58, we are sure that we will get 4 full films. ( For 5 full films = 12*5 = 60 but expense is $52.58)
4 full film cost = 4 * 12.10 = 48.4.
Remaining cost : 52.58 - 48.40 = 4.18.
This $ 4.18 cost is the cost of the first photo + cost of additional photos (number of additional photos * 0.33).
4.18 = 0.55 + cost of additional photos (number of additional photos * 0.33) .
4.18 - 0.55 = number of additional photos * 0.33
Therefore, number of additional photos = \(\frac{3.63 }{ 0.33}\) = 11.
Hence, for the cost of $ 4.18 = we get a total of 12 photos.
Overall, we et 4 films and 12 photos
Answer: A
Additional photo (40% less which means 60% of0.55) = \(\frac{60}{100}\)*0.55 = $0.33.
1 full film has 36 photos which means: 1 + 35 additional photos.
Cost of 1 full film = 1(0.55) + 35 (0.33) = 0.55+11.55 = $ 12.10.
Total expense: $52.58.
Just looking at the integer value of $12.10 and $ 52.58, we are sure that we will get 4 full films. ( For 5 full films = 12*5 = 60 but expense is $52.58)
4 full film cost = 4 * 12.10 = 48.4.
Remaining cost : 52.58 - 48.40 = 4.18.
This $ 4.18 cost is the cost of the first photo + cost of additional photos (number of additional photos * 0.33).
4.18 = 0.55 + cost of additional photos (number of additional photos * 0.33) .
4.18 - 0.55 = number of additional photos * 0.33
Therefore, number of additional photos = \(\frac{3.63 }{ 0.33}\) = 11.
Hence, for the cost of $ 4.18 = we get a total of 12 photos.
Overall, we et 4 films and 12 photos
Answer: A
