Multiple Choice Questions on How many words of 4 letters beginning with either A or E can be formed with the letters of the word ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

How many words of 4 letters beginning with either A or E can be formed with the letters of the word ...........

Quantitative Aptitude ( CCS) Permutation & Combination
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    How many words of 4 letters beginning with either A or E can be formed with the letters of the word EQUATION?
     
     

    400 

    Incorrect Answer

    410
     

    Incorrect Answer

    420 

    Correct Answer

    430

    Incorrect Answer
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    Explanation:
     Required no. of such words = 2P1 × 7P3
     
    = 2 × (7 × 6 × 5) = 420

    By: Sandeep Dubey
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