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What was the average production rate of cups of espresso per machine

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Bunuel
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What was the average production rate of cups of espresso per machine [#permalink] New post   25 Jun 2021, 01:30
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What was the average production rate of cups of espresso per machine for machines A, B, C and D last week?

(1) Machine A and D produced a total of 503 cups of espresso last week.

(2) Machine B and E produced a total of 405 cups of espresso last week.
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Re: What was the average production rate of cups of espresso per machine [#permalink] New post   25 Jun 2021, 03:13
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Bunuel wrote:
What was the average production rate of cups of espresso per machine for machines A, B, C and D last week?

(1) Machine A and D produced a total of 503 cups of espresso last week.

(2) Machine B and E produced a total of 405 cups of espresso last week.


If there are no typos in the question, the answer is E, because we never learn anything about machine C.

If instead, Statement 2 means to say "Machines B and C", instead of "Machines B and E", then the two statements together would be sufficient, which is immediately clear from weighted average principles, but is also clear if you notice the four machines produced a total of 503+405=908 espressos, so their average rate was 908/4.
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Re: What was the average production rate of cups of espresso per machine [#permalink] New post   25 Jun 2021, 03:29
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No information about Machine c in any of the statements
E is the answer IMO

Bunuel wrote:
What was the average production rate of cups of espresso per machine for machines A, B, C and D last week?

(1) Machine A and D produced a total of 503 cups of espresso last week.

(2) Machine B and E produced a total of 405 cups of espresso last week.


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Re: What was the average production rate of cups of espresso per machine [#permalink] New post   25 Jun 2021, 05:02
What was the average production rate of cups of espresso per machine for machines A, B, C and D last week?
= (A+B+C+D )

(1) Machine A and D produced a total of 503 cups of espresso last week.
A+D = 503
No information about B and C.

(2) Machine B and E produced a total of 405 cups of espresso last week.
B + E = 405
Not information about A, C and D.

Combining both statements:
Still no information regarding cups produced by C.

IMO E
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Re: What was the average production rate of cups of espresso per machine [#permalink] New post   25 Jun 2021, 10:30
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Bunuel wrote:
What was the average production rate of cups of espresso per machine for machines A, B, C, and D last week?


To calculate avg, I need to have the total production details of all the machines (A,B,C,D)

(1) Machine A and D produced a total of 503 cups of espresso last week.
Clearly this alone is not sufficient as we don't have info of C,B

(2) Machine B and E produced a total of 405 cups of espresso last week.
Clearly this stmt alone is also not sufficient as we don't have info of C,A,D

Even by using Stmt 1 & Stmt 2 we don't have information about B. Hence IMO E
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Re: What was the average production rate of cups of espresso per machine [#permalink] New post   25 Jun 2021, 23:47
Bunuel wrote:
What was the average production rate of cups of espresso per machine for machines A, B, C and D last week?

(1) Machine A and D produced a total of 503 cups of espresso last week.

(2) Machine B and E produced a total of 405 cups of espresso last week.


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One would need the total production rates for machines A,B,C and D
Clearly, even after combining (1) & (2) also, we don't get any info on C.
(E), IMO!
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Re: What was the average production rate of cups of espresso per machine [#permalink]
25 Jun 2021, 23:47
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