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28 Jun 2021, 00:24
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
81% (00:40) correct
19%
(00:51)
wrong
based on 86
sessions
History
Date
Time
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Not Attempted Yet
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 C produced a total of 405 cups of espresso last week.
(1) Machine A and D produced a total of 503 cups of espresso last week.
(2) Machine B and C produced a total of 405 cups of espresso last week.
28 Jun 2021, 02:10
Kudos
Bookmarks
Bunuel
Average production rate of cups for machines A, B, C and D = Total cups produced by all 4 machines/4
Statement 1:
A and D produced 503 cups.
Number of cups produced by B and C are unknown.
Statement 1 is Not Sufficient.
Statement 2:
B and C produced 405 cups.
Number of cups produced by A and D are unknown.
Statement 2 is also Not Sufficient.
Statement 1 and Statement 2 combined:
A and D produced 503 cups, B and C produced 405 cups.
Total cups produced = 908 cups
Average production rate = \(\frac{908}{4}\) = 227 cups per machine.
Statement 1 and Statement 2 together are Sufficient.
So, correct answer is option C.
28 Jun 2021, 11:58
Kudos
Bookmarks
Bunuel
We need to know the total rates of \(A + B + C + D\).
Statement 1:
Missing B + C. Insufficient.
Statement 2:
Missing A + D. Insufficient.
Combined:
A + B + C + D = 503 + 405. Sufficient.
Ans: C
