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14 May 2025, 00:30
Kudos
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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:
15%
(low)
Question Stats:
85% (00:51) correct
15%
(00:55)
wrong
based on 55
sessions
History
Date
Time
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Not Attempted Yet
On Thursday afternoon, two machines, J and R, ran continuously at uniform rates to fill a production order. How long did it take them to fill the order?
(1) The machine began filling the order at 3 p.m.
(2) The machine had filled 1/2 of the order by 3:46 p.m.
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
(1) The machine began filling the order at 3 p.m.
(2) The machine had filled 1/2 of the order by 3:46 p.m.
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
14 May 2025, 01:33
Kudos
Bookmarks
It seems something is missing in this question. Prompt mentions 2 machines but the statements talk about the machine - we don't know which one. Even if we say that it's say J, then we have no info on R
If it is intentional, I would go with E as no info on the "other machine" is provided.
OR if the statements meant machines then the answer would be C, as we are given two machines, J and R, ran continuously at uniform rates to fill a production order and we got the rate of both together
If it is intentional, I would go with E as no info on the "other machine" is provided.
OR if the statements meant machines then the answer would be C, as we are given two machines, J and R, ran continuously at uniform rates to fill a production order and we got the rate of both together
Bunuel
14 May 2025, 05:23
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Let’s determine if we can find how long machines J and R took to fill a production order.
The stem states machines J and R work at uniform rates to fill an order, and we need the total time taken.
Combining both statements provides the start time and the time to complete half the order, enabling us to find the total time.
Answer: C
The stem states machines J and R work at uniform rates to fill an order, and we need the total time taken.
| Source | Information Provided | Sufficiency |
| Question Stem | Machines J and R fill an order at uniform rates. | Insufficient, as no start time, end time, or rates are given. |
| Question Stem + Statement 1 | Machines began filling the order at 3 p.m. | Insufficient, as the end time or rate of work is unknown. |
| Question Stem + Statement 2 | Half the order was filled by 3:46 p.m. | Insufficient, as the start time or total time is not provided. |
| Question Stem + Statements 1 + 2 | Start time at 3 p.m., half the order filled by 3:46 p.m. | Sufficient. The time to fill half the order (from 3 p.m. to 3:46 p.m.) allows us to determine the rate, and thus the time for the full order, assuming uniform rates. |
Combining both statements provides the start time and the time to complete half the order, enabling us to find the total time.
Answer: C
