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24 May 2022, 07:00
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
54% (02:46) correct
46%
(02:59)
wrong
based on 56
sessions
History
Date
Time
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Not Attempted Yet
A certain manufacturer produces an engine lift with three pulleys and seven levers. If each box contains eight pulleys and the manufacturer is starting with unopened boxes and does not want to have a partial box of pulleys remaining, which of the following could not be the number of levers used in the manufacturing job?
I. 56
II. 84
III. 196
A. I only
B. II only
C. III only
D. II and III only
E. I, II, and III
I. 56
II. 84
III. 196
A. I only
B. II only
C. III only
D. II and III only
E. I, II, and III
24 May 2022, 11:22
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Bunuel
Number Properties:
We need to make the engine lifts in multiples of 8 because we have 8 pulleys per box. So this means we end up needing to make 24 pulleys and 56 levers at a time. Then any multiple of 56 is viable for this configuration. Only I is a multiple of 56.
Answer: A
