Latest TCS Aptitude Question SOLUTION: in how many ways the letters algebra can be arranged in a row if (a) the two a`s are together? (b) the two a`s are not together?

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in how many ways the letters algebra can be arranged in a row if
(a) the two a`s are together?
(b) the two a`s are not together?

Asked In TCS charan (11 years ago)

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mohd zubair khan  (11 years ago)

A L G E B R A total letters= 7
but aa are together letters = 6 (let aa be a single letter)
so for two AA's together words= 6! = 720 ans(a)

now total ways of arranging the letters= 7!/2!=2520
when they both are together = 6!
NOW when both aa are not to gether= 2520-6! = 1800 ans(b)

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