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1. |
Q: A secret can be told to only 3 persons in 3 minutes. Each person in turn tells 3 other persons in the next 3 minutes and the processes continues accordingly. In 30 minutes how many persons can be told this secret in this way ? |
A. | 88572 |
B. | 77854 |
C. | 99584 |
D. | 55654 |
Answer» B. 77854 | |