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JEE Mains 28-July-2022 Shift 1 Solved Paper

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Question : 21

Total: 90

Let S be the set of all passwords which are six to eight characters long, where each character is either an alphabet from {A,B,C,D,E} or a number from {1,2,3,4,5} with the repetition of characters allowed. If the number of passwords in S whose at least one character is a number from {1,2,3,4,5} is α×56, then α is equal to _______.

[28-Jul-2022-Shift-1]

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