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What was the total amount of postage required to mail n letters?

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GMATBusters
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What was the total amount of postage required to mail n letters? [#permalink] New post   01 Nov 2018, 09:42
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71% (00:30) correct 29% (00:29) wrong based on 173 sessions
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What was the total amount of postage required to mail n letters?
(1) n = 10
(2) Each of the letters required at least $0.32 postage.
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E
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AnisMURR
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Re: What was the total amount of postage required to mail n letters? [#permalink] New post   04 Nov 2018, 10:03
(1) n = 10

We know the number of letter but we don't know the postage cost.

(2) Each of the letters required at least $0.32 postage.

At least 0,32$ postage, we still don't know the postage cost.

(1)+(2)

We know the number of letters but we don't know the postage cost.

Answer E
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DavidTutorexamPAL
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Re: What was the total amount of postage required to mail n letters? [#permalink] New post   04 Nov 2018, 10:36
The answer is E. T
his question can be solved easily using Logic, no need to calculate:
in order to calculate the postage, we need to know the value of two variables: the cost of postage for each letter, and the number of letters (n). Even when combined, both statements do not provide this - since (2) only gives a range for n, and not a value.
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Re: What was the total amount of postage required to mail n letters? [#permalink] New post   12 Mar 2020, 06:49
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GMATBusters wrote:
What was the total amount of postage required to mail n letters?
(1) n = 10
(2) Each of the letters required at least $0.32 postage.


Target question: What was the total amount of postage required to mail n letters?

When I SCAN the two statements, they both feel insufficient, AND I’m pretty sure I can identify some cases with conflicting answers to the target question. So, I’m going to head straight to……

Statements 1 and 2 combined
There are several scenarios that satisfy BOTH statements. Here are two:
Case a: There are 10 letters, add each letter requires $0.40 in postage. In this case, the answer to the target question is the total postage cost = (10)($0.40) = $4.00
Case b: There are 10 letters, add each letter requires $0.50 in postage. In this case, the answer to the target question is the total postage cost = (10)($0.50) = $5.00
Since we cannot answer the target question with certainty, the combined statements are NOT SUFFICIENT

Answer: E

Cheers,
Brent
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Re: What was the total amount of postage required to mail n letters? [#permalink] New post   23 Nov 2022, 22:02
If these are the choices I get:

(1) n = 10
(2) Each of the letters required at least $0.32 postage.

Then how am I supposed to answer?
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Re: What was the total amount of postage required to mail n letters? [#permalink]
23 Nov 2022, 22:02
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