Question

    In how many ways can the letters of the word PARALLEL be

    arranged so that all the L's do not come together?
    A 3360 Correct Answer Incorrect Answer
    B 2100 Correct Answer Incorrect Answer
    C 3000 Correct Answer Incorrect Answer
    D 2700 Correct Answer Incorrect Answer

    Solution

    Total letter in word PARALLEL =8 L=3times A=2times If all L are considered as one, then the number of letters is -6. A=2times Total ways of L come together =6! /2! =6×5×4×3=360 Now total ways of L's do not come together=3360-360 =3000

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