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Well, I have a doubt regarding this problem.

If the average number of customer per car is 02, we can have range of possibilities: (lets assume that car have seating capacity of 04 people)

So, here in our situation the "Averaging/Balancing" concept will not work.

This question is from QPACK 01 and I think answer should be (E).

Official explanation incorrectly mentions (C).

Any expert replies please.

Thanks
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This is really just a ratio question; Statement 1 about 'average customers per car' is really just telling us that the ratio of customers to cars is 2 to 1. So if we know, from Statement 2, there were 900 customers, then using S1 there were 450 cars, and the answer is C.

vikasbansal227
If the average number of customer per car is 02, we can have range of possibilities: (lets assume that car have seating capacity of 04 people)

So, here in our situation the "Averaging/Balancing" concept will not work.

This question is from QPACK 01 and I think answer should be (E).

Official explanation incorrectly mentions (C).

The official answer is correct. The seating capacity of the cars is not relevant to the question. The question only talks about how many customers actually occupied the cars, not how many seats were in the cars.
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vikasbansal227

Quote:
If each customer at the outdoor movie last night came in a car, what was the number of cars in which the customers came to the outdoor movie last night?

1) The average (arithmetic mean) number of customers per car coming to the outdoor movie last night was 2.

2) Total receipts at the outdoor movie last night were $4,500 at $5 per customer .

Well, I have a doubt regarding this problem.

If the average number of customer per car is 02, we can have range of possibilities: (lets assume that car have seating capacity of 04 people)

So, here in our situation the "Averaging/Balancing" concept will not work.

This question is from QPACK 01 and I think answer should be (E).

Official explanation incorrectly mentions (C).

Any expert replies please.

Thanks

Hi Vikasbansal227,

The Average Customer per car is Defined as follows

Average Customer per Car = (Total Customers) / (Total No. of Cars)

i.e. Total No. of Cars = (Total Customers) / (Average Customer per Car)

Statement 1: Average Customer per Car=2

i.e. Total Customers = (2) * (Total No. of Cars) [Please note: The seating capacity has no role in this calculation, all that we need is the number of cars. Take example that a car with seating capacity of 1 may have only 1 customer and another car of seating capacity 5 can have 3 customers but together these cars have 2 passanger per car i.e. (1+3)/2= 2 passengers per car]

But Since the Total No. of Customers is unknown therefore

NOT SUFFICIENT

Statement 2: Total receipts at the outdoor movie last night were $4,500 at $5 per customer
Total Customer = Total Receipts / Receipt per customer = 4500/ 5 = 900
But the The relation between Total Number of Customers and No. of Cars is unknown, Therefore

NOT SUFFICIENT

Combining the two statements:

From Statement 1: Total Customers = (2) * (Total No. of Cars)
From Statement 1: Total Customers = 900

i.e. (Total No. of Cars) = 900/2 = 450
SUFFICIENT

Answer: Option
Please Note: It's not a good Idea to doubt the Answers of Official Resource. Official resource is made after a lot of iterations and research and corrections.
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It is straight c
Although initially it looks E, but as you go through it carefully then we know we have given no. Of passengers and also by combining we get to know about aveg of passanger per car so it is C after all

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