Latest TCS Aptitude Question SOLUTION: how many different digit number are there which have digit 1,2,3,4,5,6,7,8, such that digit 1 appears exactly once its answer is 4c1 *7^3 how? why 4c1 is use here .?

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(#M40040275) TCS Numerical Ability question permutation and combination Keep an EYE

how many different digit number are there which have digit 1,2,3,4,5,6,7,8, such that digit 1 appears exactly once

its answer is 4c1 *7^3 how? why 4c1 is use here .?

Asked In TCS sarang (9 years ago)

Solved Vinay Sipani Read Solution (8)

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