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Sameer has to make a telephone call to his friend Harish. Unfortunately he does not remember the 7 – digit phone number. But he remembers the first 3 digits are 635 or 674, the number is odd and there is exactly one 9 in the number. The minimum number of trials that Sameer has to make to be successful is
🗓 Dec 6, 2021
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Alexandra
🌐 India
Students helping students, nice idea
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