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Re: Helen paid $252 for a conference ticket. If she had purchas [#permalink]
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On https://gmatclub.com/forum/posting.php? ... &p=1866854

I found the following which may be helpful for some

GMATPrepNow wrote:
hazelnut wrote:
Conference Ticket Advance Discounts
5-29 days in advance -> 15%
30-59 days in advance -> 30%
60-89 days in advance -> 40%


Helen bought a ticket for $252. If she had bought it 1 day later, she would have paid $306. How many days in advance did she buy her ticket?

(A) 5
(B) 30
(C) 59
(D) 60
(E) 89


Let's say the regular ticket price is $100 and see what kinds of prices we pay.
5-29 days in advance: we pay $85
30-59 days in advance: we pay $70
60-89 days in advance: we pay $60

Now let's examine the following ratios:

(Price paid 30-59 days in advance)/(Price paid 5-29 days in advance) = 70/85 = 14/17
(Price paid 60-89 days in advance)/(Price paid 30-59 days in advance) = 60/70 = 6/7

Now compare the given information.
(price paid)/(price WOULD HAVE paid a day later) = 252/306 = 126/153 = 42/51 = 14/17

The ratio of 14/17 matches the first scenario.
So, it must be the case that Helen paid the $252 amount 30 days in advance.
A day later would have been 29 days in advance, in which case she would have paid $306

Answer:
Show: ::
B


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Re: Helen paid $252 for a conference ticket. If she had purchas [#permalink]
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sandy wrote:
Conference Ticket Advance Discounts
5-29 days in advance15%
30-59 days in advance30%
60-89 days in advance40%

Helen paid $252 for a conference ticket. If she had purchased the ticket one day later, she would have paid $306. How many days in advance did she purchase the ticket?

(A) 5
(B) 30
(C) 59
(D) 60
(E) 89


Let's say the regular ticket price is $100 and see what kinds of prices we pay.
5-29 days in advance: we pay $85
30-59 days in advance: we pay $70
60-89 days in advance: we pay $60

Now let's examine the following ratios:

(Price paid 30-59 days in advance)/(Price paid 5-29 days in advance) = 70/85 = 14/17
(Price paid 60-89 days in advance)/(Price paid 30-59 days in advance) = 60/70 = 6/7

Now compare the given information.
(price paid)/(price WOULD HAVE paid a day later) = 252/306 = 126/153 = 42/51 = 14/17

The ratio of 14/17 matches the first scenario.
So, it must be the case that Helen paid the $252 amount 30 days in advance.
A day later would have been 29 days in advance, in which case she would have paid $306

Answer: B
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Re: Helen paid $252 for a conference ticket. If she had purchas [#permalink]
Wondering why you didn't compare purchasing 5 days in advance with 4 days?

85/100 = 17/20 so out of the running ... but don't you have to check it?

GreenlightTestPrep wrote:
sandy wrote:
Conference Ticket Advance Discounts
5-29 days in advance15%
30-59 days in advance30%
60-89 days in advance40%

Helen paid $252 for a conference ticket. If she had purchased the ticket one day later, she would have paid $306. How many days in advance did she purchase the ticket?

(A) 5
(B) 30
(C) 59
(D) 60
(E) 89


Let's say the regular ticket price is $100 and see what kinds of prices we pay.
5-29 days in advance: we pay $85
30-59 days in advance: we pay $70
60-89 days in advance: we pay $60

Now let's examine the following ratios:

(Price paid 30-59 days in advance)/(Price paid 5-29 days in advance) = 70/85 = 14/17
(Price paid 60-89 days in advance)/(Price paid 30-59 days in advance) = 60/70 = 6/7

Now compare the given information.
(price paid)/(price WOULD HAVE paid a day later) = 252/306 = 126/153 = 42/51 = 14/17

The ratio of 14/17 matches the first scenario.
So, it must be the case that Helen paid the $252 amount 30 days in advance.
A day later would have been 29 days in advance, in which case she would have paid $306

Answer: B
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Re: Helen paid $252 for a conference ticket. If she had purchas [#permalink]
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linder wrote:
Wondering why you didn't compare purchasing 5 days in advance with 4 days?

85/100 = 17/20 so out of the running ... but don't you have to check it?


You're absolutely right. I should have determine that ratio as well.
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Re: Helen paid $252 for a conference ticket. If she had purchas [#permalink]
Hello from the GRE Prep Club BumpBot!

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