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excelingmat
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Each packet of SOAP costs Rs. 10. Inside each packet is a gift coupon 04 Nov 2015, 10:36
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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:

45% (medium)

Question Stats:

64% (01:43) correct 36% (01:46) wrong based on 161 sessions

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Each packet of SOAP costs Rs. 10. Inside each packet is a gift coupon labelled with one of the letters S, O, A, and P. If a customer submits four such coupons that make up the word SOAP, the customer gets a free SOAP packet. Ms. X kept buying packet after packet of SOAP till she could get one set of coupons that formed the word SOAP. How many coupons with label P did she get in the above process?

A. The last label obtained by her was S and the total amount spent was Rs. 210.
B. The total number of vowels obtained was 18.
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C
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Each packet of SOAP costs Rs. 10. Inside each packet is a gift coupon 26 Jan 2016, 09:45
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Where did this problem come from? is this a realistic GMAT question?
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EMPOWERgmatRichC
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Each packet of SOAP costs Rs. 10. Inside each packet is a gift coupon 30 Jan 2016, 00:10
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Hi lpetroski,

The questions that you'll see on the Official GMAT will be very carefully written and rigorously tested. While the 'logic' behind this question is certainly in the realm of what you'll see on Test Day, the wording is a little vague in spots.

Although the prompt didn't clearly state it, we're meant to assume that:
1) Ms. X. bought packets of soap UNTIL she received at least one of each of the four letters, then she stopped.
2) Using that same logic, the information in Fact 1 implies that the 21st packet she bought gave her the missing letter she needed to complete the full set.

GMAT assassins aren't born, they're made,
Rich
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Each packet of SOAP costs Rs. 10. Inside each packet is a gift coupon 29 Oct 2019, 11:56
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excelingmat
Each packet of SOAP costs Rs. 10. Inside each packet is a gift coupon labelled with one of the letters S, O, A, and P. If a customer submits four such coupons that make up the word SOAP, the customer gets a free SOAP packet. Ms. X kept buying packet after packet of SOAP till she could get one set of coupons that formed the word SOAP. How many coupons with label P did she get in the above process?

A. The last label obtained by her was S and the total amount spent was Rs. 210.
B. The total number of vowels obtained was 18.

Things to remember from prompt -
Each Packet cost = Rs 10.
Ms. X kept buying packet after packet of SOAP till she could get one set of coupons that formed the word SOAP

Need to find how many P's were found.

Statement 1 - The last label obtained by her was S and the total amount spent was Rs. 210.

From this we just know that SOAP was formed as X spent total 210. Hence we have at least 1 SOAP each. But how many more than that, we are not sure.

Hence Insufficient.

Statement 2 - The total number of vowels obtained was 18.

This does not help in getting the count of P in any way. Hence Insufficient.

Combining Statement 1 and Statement 2 -

Total = Rs. 210
Vowels = 18, i.e. Rs. 180 spent on vowels

Remaining = Rs. 30
Out of that Rs. 10 spent on purchased S as per statement 1.

Remaining = Rs.20
Now for 20, we have two cases -
1. Both 'P'
2. One 'P' and other 'S'.

Now X, would have got both 'P' because 'S' was the last obtained. If X would have got One 'P' and other 'S', then the total would have stopped at Rs. 200 only as her ultimate aim was to form only one SOAP, as mentioned in the prompt.

Hence Count of P = 2 and combining Statement's 1 and 2 was sufficient.

Answer = C
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