Questions
The 11 number of arrangements that can be made with the letters of the word 'MATHEMATICS' in which all vowels come together, is
detailed solution
Correct option is B
There are 4 vowels viz. A, E, A, I. Considering these four vowels as one letter we have 8 letters (M, T, H, M, T .. C, S and one letter obtained by combining all vowels), out or which M occurs twice, T occurs twice and the rest all different. These 8 letters can be arranged in 8!2!×2! ways.But, the four vowels (A, E, A, I) can be put together in 4!2! ways.Hence, the total number of arrangements in which vowels are alwavs together =8!2!×2!×4!2!.Similar Questions
The number of ways in which we can get at least 6 successive tails when a coin is tossed 10 times in a row, is
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