Consider all possible permutations of the letters of the word "ENDEANOEL". Match the Statements/Expressions in Column I with the Statements / Expressions in Column II and indicate your answer by darkening the appropriate bubbles in the 4 × 4 matrix given in the ORS.
Column I Column II
Text Solution
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→ (p), → (s), → (q), → (q)
Sol.
Consider 'ENDEA' as one letter so there are five things which are ENDEA , N, O, E, L
∴ number of permutations = 5!
E N D E A N O L E (first and last letters are f'ixed) Number of permutations = 
= 21 × 5!
N, N, D, L will come at first four places and E, E, E, O, A will come at last five places
∴ number of permutations = 
× 
= 2 × 5!
A, E, E, E, O, occur at odd positions and N, N, D, L at even positions = 
× 
= 2 × 5!
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