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08 Jul 2025, 08:00
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Launch: 98
Questionnaire: 138
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
71% (02:52) correct
29%
(03:13)
wrong
based on 435
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At exactly 3:00 PM on a Monday, the marketing team finalized and approved the launch plan for a new campaign and the following evaluation process. The campaign would be launched at 5:00 PM on some day after that Monday, and the customer questionnaire would be sent at 9:00 AM on some day after the campaign launch.
In the table, select for Launch the number of hours between the 3:00 PM decision on Monday and the 5:00 PM campaign launch, and select for Questionnaire the number of hours between the decision on Monday and the 9:00 AM time the questionnaire is sent that would be jointly consistent with the given information. Make only two selections, one in each column.
| Launch | Questionnaire | |
| 42 | ||
| 66 | ||
| 84 | ||
| 98 | ||
| 138 | ||
| 146 |
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Official Answer
Launch: 98
Questionnaire: 138
08 Jul 2025, 08:30
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Bunuel
GMAT Club Official Explanation:
Between 3:00 PM and 5:00 PM on some day after Monday is of the form 24m + 2 hours, where m is the number of full days after Monday.
Between 3:00 PM and 9:00 AM on some later day is of the form 24n + 18 hours, where n is the number of full days after Monday.
We need one number in the options that fits 24m + 2 and a larger number that fits 24n + 18. Among the options:
- 98 = 24 * 4 + 2, so it fits the launch condition.
- 138 = 24 * 5 + 18, so it fits the questionnaire condition.
This is the only valid pair.
Final answer: Launch is 98, Questionnaire is 138.
MaxFabianKirchner
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08 Jul 2025, 08:47
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The two events, the launch and the questionnaire, must adhere to specific time-based rules relative to the decision time of Monday at 3:00 PM. The launch occurs at 5:00 PM on a future day, meaning its duration in hours (L) must be 2 more than a multiple of 24. The formula is L = 24D + 2. The questionnaire is sent at 9:00 AM on a future day, meaning its duration in hours (Q) must be 6 less than a multiple of 24. The formula is Q = 24K - 6.
Applying the first rule to the "Launch" options, only 98 is valid, since 98 - 2 = 96, and 96 is a multiple of 24. Applying the second rule to the "Questionnaire" options, three values are valid: 42 (since 42 + 6 = 48), 66 (since 66 + 6 = 72), and 138 (since 138 + 6 = 144). All resulting sums are multiples of 24.
The final constraint is that the questionnaire is sent after the launch, meaning the duration Q must be greater than the duration L. Since L must be 98, we must find the value from the valid questionnaire options {42, 66, 138} that is greater than 98. The only value that satisfies this condition is 138.
Therefore, the only jointly consistent solution is 98 hours for the launch and 138 hours for the questionnaire.
Applying the first rule to the "Launch" options, only 98 is valid, since 98 - 2 = 96, and 96 is a multiple of 24. Applying the second rule to the "Questionnaire" options, three values are valid: 42 (since 42 + 6 = 48), 66 (since 66 + 6 = 72), and 138 (since 138 + 6 = 144). All resulting sums are multiples of 24.
The final constraint is that the questionnaire is sent after the launch, meaning the duration Q must be greater than the duration L. Since L must be 98, we must find the value from the valid questionnaire options {42, 66, 138} that is greater than 98. The only value that satisfies this condition is 138.
Therefore, the only jointly consistent solution is 98 hours for the launch and 138 hours for the questionnaire.
