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Currently, there are 40 cars in each row of the lot at a car dealershi

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Currently, there are 40 cars in each row of the lot at a car dealershi  [#permalink]

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New post 29 Sep 2015, 20:10
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Question Stats:

65% (01:21) correct 35% (01:30) wrong based on 167 sessions

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Currently, there are 40 cars in each row of the lot at a car dealership. If the parking spaces are to be widened and lengthened so that only 30 cars fit in each row and fewer rows fit in the lot, how many cars will then fit in the entire lot?

(1) There will be 3 fewer rows of cars.
(2) Currently there are 10 rows of cars.


Kudos for a correct solution.

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Re: Currently, there are 40 cars in each row of the lot at a car dealershi  [#permalink]

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New post 30 Sep 2015, 09:54
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Bunuel wrote:
Currently, there are 40 cars in each row of the lot at a car dealership. If the parking spaces are to be widened and lengthened so that only 30 cars fit in each row and fewer rows fit in the lot, how many cars will then fit in the entire lot?

(1) There will be 3 fewer rows of cars.
(2) Currently there are 10 rows of cars.


Kudos for a correct solution.


how many cars will then fit in the entire lot? => Determine the number of rows after widening and lengthening
(1) There will be 3 fewer rows of cars
Do not know the number of rows
INSUF
(2) Currently there are 10 rows of cars.
INSUF
(1) + (2) => know the number of rows after = 10 - 3
SUFFICIENT

Ans: C
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Re: Currently, there are 40 cars in each row of the lot at a car dealershi  [#permalink]

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New post 05 Oct 2015, 04:44
1
Bunuel wrote:
Currently, there are 40 cars in each row of the lot at a car dealership. If the parking spaces are to be widened and lengthened so that only 30 cars fit in each row and fewer rows fit in the lot, how many cars will then fit in the entire lot?

(1) There will be 3 fewer rows of cars.
(2) Currently there are 10 rows of cars.


Kudos for a correct solution.


VERITAS PREP OFFICIAL SOLUTION:

Question Type: What Is the Value? This question asks how many cars will fit in the parking lot after it is made larger.

Given information from the question stem: The number of cars in each row will be decreased from 40 to 30. However, there will be fewer total rows in the lot as well. In order to answer the question “How many total cars will fit in the entire lot?” you will need to know how many rows times how many cars per row. You already know how many cars per row (30), so this question will hinge on whether you can determine the number of total rows in the new lot.

Statement 1: The new configuration will have 3 fewer rows than the current lot does. However there is no indication of how many rows were originally there. This is not sufficient. Therefore choices A and D are eliminated.

Statement 2: Before the change there are 10 rows of cars. Yet this does not tell you how many rows there will be after the change. Remember: Answer choice B is that “Statement 2 ALONE is sufficient.” This problem is a good opportunity to practice looking at Statement 2 alone and forgetting what you learned from Statement 1. Since Statement 2 alone is also not sufficient, choice B is eliminated.

Together: The statements allow for the calculation that there are 7 rows after the changes to the parking lot. 7 rows @ 30 cars per row = 210 cars. This is sufficient and the answer is C.
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Collection of Questions:
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Currently, there are 40 cars in each row of the lot at a car dealershi  [#permalink]

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New post 01 Mar 2018, 02:55
pushpitkc niks18 Hatakekakashi chetan2u
amanvermagmat

Is below approach most efficient?

Quote:
Q stem: Currently, there are 40 cars in each row of the lot at a car dealership. If the parking spaces are to be widened and lengthened so that only 30 cars fit in each row and fewer rows fit in the lot, how many cars will then fit in the entire lot?


This can be broken down:

Let total no of cars be x and there are total y rows.

40 * y = x

We are changing parking area so that

30 * z = x ; Also z < y

Question is : What is x?

Quote:
(1) There will be 3 fewer rows of cars.

z is less than y; Not suff since no idea about x


Quote:
(2) Currently there are 10 rows of cars.

Now we know value of z, so x = 300. What am I missing here?
OE in past tense is confusing me :(

Had this St been Currently there are 10 no of cars in each row.

Would this alone be suff?
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Re: Currently, there are 40 cars in each row of the lot at a car dealershi  [#permalink]

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New post 01 Mar 2018, 07:55
adkikani wrote:
pushpitkc niks18 Hatakekakashi chetan2u
amanvermagmat

Is below approach most efficient?

Quote:
Q stem: Currently, there are 40 cars in each row of the lot at a car dealership. If the parking spaces are to be widened and lengthened so that only 30 cars fit in each row and fewer rows fit in the lot, how many cars will then fit in the entire lot?


This can be broken down:

Let total no of cars be x and there are total y rows.

40 * y = x

We are changing parking area so that

30 * z = x ; Also z < y

Question is : What is x?

Quote:
(1) There will be 3 fewer rows of cars.

z is less than y; Not suff since no idea about x


Quote:
(2) Currently there are 10 rows of cars.

Now we know value of z, so x = 300. What am I missing here?
OE in past tense is confusing me :(

Had this St been Currently there are 10 no of cars in each row.

Would this alone be suff?


Hi adkikani

If you read the question carefully, there are two Scenarios given and in both the scenarios number of cars in each row is given 40 & 30. What is missing is "Number of Rows". Finally you need to find the Total number of cars in the second scenario.

So you need to analyses the statements and try to find out total number of rows in the Second scenario.

Statement 1 gives relationship between number of rows from first and second scenario and Statement 2 gives total number of rows in the first scenario. So combining both these statements you can find total number of rows in the second lot
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Re: Currently, there are 40 cars in each row of the lot at a car dealershi  [#permalink]

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New post 18 Dec 2018, 22:28
Statement 1. Since we don’t know the current number of rows in the parking lot, we cannot answer this question. Hence, Insufficient.
Statement 2. Since we don’t know the reduced no of rows in the parking lot, we cannot answer it using statement 2 alone. Hence, Insufficient.
Statement 1 & 2 together. Now, we know the now of rows and the no of cars in each row. So, we can calculate the no of cars that can fit in the parking lot. i.e.
30(cars in each row) x 7( no of rows)= 210 cars. Hence , Sufficient.
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Re: Currently, there are 40 cars in each row of the lot at a car dealershi &nbs [#permalink] 18 Dec 2018, 22:28
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