InterviewSolution
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InterviewSolution
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Find the number of 4 digit odd numbers that can be formed using the digit 4,6,7,9,3 so that each digit occurs at most once in each number.A. 120B. 24C. 48D. 72 |
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Answer» (i) The units digit of the number must be odd, i.e., it can be done in 3 ways. (ii) Now find the number of ways in which the three digits can be filled using four digits. (iii) Use the fundamental theorem of counting. |
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