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21 Jan 2014, 09:44
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
56% (01:59) correct
44%
(02:00)
wrong
based on 315
sessions
History
Date
Time
Result
Not Attempted Yet
Discount Schedule
Days before publication deadline -- Discount
181 or more -- 30%
180 to 91 --- 25%
90 to 46 ---- 15%
45 to 21 ---- 5%
20 or fewer -- 0%
A textbook press offers discounts on orders placed sufficiently prior to a school term's publication deadline. If a school district placed an order that amounted to $180,000 before any discount was applied, how many days before the publication deadline was the order placed?
(1) The school district received a discount of $45,000.
(2) If the district had placed their order one day later, their discount would have been $18,000 less.
OE
Hi, I want to have simple explanation on this, please.
Days before publication deadline -- Discount
181 or more -- 30%
180 to 91 --- 25%
90 to 46 ---- 15%
45 to 21 ---- 5%
20 or fewer -- 0%
A textbook press offers discounts on orders placed sufficiently prior to a school term's publication deadline. If a school district placed an order that amounted to $180,000 before any discount was applied, how many days before the publication deadline was the order placed?
(1) The school district received a discount of $45,000.
(2) If the district had placed their order one day later, their discount would have been $18,000 less.
OE
(1): work backwards to determine which range of dates this discount falls under. Discount %: 25%
Consulting the table, the order could have been placed anytime between 91 and 180 days before the deadline.
More than one value
Insufficient.
(2): limits answer to four values: 181, 91, 46, or 21 days.
Convert the discount of $18,000 to %: 10%
Change of $18,000 is 10%. Looking at table, there are 2 places where there is a difference of 10%: from a 25% to 15% discount, and from a 15% to a 5% discount.
2 possible values: 91 or 46 days before deadline.
Insufficient
Combined: We are in 25% range and that we are one day shy of dropping to a lower discount. The order must have been placed precisely 91 days prior to publication deadline.
Sufficient
Consulting the table, the order could have been placed anytime between 91 and 180 days before the deadline.
More than one value
Insufficient.
(2): limits answer to four values: 181, 91, 46, or 21 days.
Convert the discount of $18,000 to %: 10%
Change of $18,000 is 10%. Looking at table, there are 2 places where there is a difference of 10%: from a 25% to 15% discount, and from a 15% to a 5% discount.
2 possible values: 91 or 46 days before deadline.
Insufficient
Combined: We are in 25% range and that we are one day shy of dropping to a lower discount. The order must have been placed precisely 91 days prior to publication deadline.
Sufficient
Hi, I want to have simple explanation on this, please.
21 Jan 2014, 11:43
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goodyear2013
Dear goodyear2013,
I'm happy to respond. Here's how I would think about this problem. First, because the percents are easy, I will just figure out the discount for each time period.
Total = $180,000
thus, 10% = $18,000
multiply that by 3 --- 30% = $54,000
divide 10% by half --- 5% = $9,000
25% = 30% - 5% = $54,000 - $9,000 = $45,000
15% = 10% + 5% = $18,000 + $9,000 = $27,000
Thus:
181 or more -- 30% = $54,000
180 to 91 --- 25% = $45,000
90 to 46 ---- 15% = $27,000
45 to 21 ---- 5% = $9,000
20 or fewer -- 0%
It should be very easy to come up with all those numbers using purely mental math. Now,
Statement #1: could be anywhere in the 180 to 91 day range. Not sufficient.
Statement #2: 10% of $180,000 is $18,000, so any place in which the discount drops by 10% would be a possibility --- this could be the (25%) --> (15%) drop, or it could be the (15%) --> (5%) drop. Two possibilities. Not sufficient.
Combined: must be the day before the (25%) --> (15%) drop, day 91. Sufficient.
Does this approach make sense?
Mike
unceldolan
Joined: 21 Oct 2013
Last visit: 03 Jun 2015
Posts: 151
Own Kudos:
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Location: Germany
Schools: Owen '17 (A$) Sauder '17 (A$) Schulich '17 (WD) Anderson FEMBA '17 (S) McDonough '17 (A) Desautels '17 (S)
GMAT 1: 660 Q45 V36
GPA: 3.51
Schools: Owen '17 (A$) Sauder '17 (A$) Schulich '17 (WD) Anderson FEMBA '17 (S) McDonough '17 (A) Desautels '17 (S)
GMAT 1: 660 Q45 V36
Posts: 151
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17 Jul 2014, 00:46
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This again is a question whcih is trying to trick you. You have to see what exactly it wants:
how many days before the publication deadline was the order placed
This means we need an exact value. Each statement alone gives you various possibilities, but together they give you the correct answer. Hence C is the choice.
how many days before the publication deadline was the order placed
This means we need an exact value. Each statement alone gives you various possibilities, but together they give you the correct answer. Hence C is the choice.
