InterviewSolution
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InterviewSolution
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Consider all possible permutations of the letters of the word ENDEANOEL. Match the statements/ expressions in column I with the statement/expressions in |
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Answer» Correct Answer - A::B::C::D `(A)to(p),(B)to(s),(C)to(q),(D)to(q)` (A) ENDEA, N,O,E,L are five different letters, then perrmutations=5!. (B) if E is in the first and last position, then permutations `=(7!)/(2!)=(7xx6xx5!)/(2)=21xx5!` (C) for first four letters`=(4!)/(2!)=4xx3=12` and for last five letters`=(5!)/(3!)=(5!)/(6)`, then permutations `=12xx(4!)/(2!)=12`, then permutations `=(5!)/(3!)xx12=(5!)/(6)xx12=2xx5!` |
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