Latest exam Aptitude Question SOLUTION: (1)In how many ways can 2 letters be selected from set={a,b,c,d} when repitition of letters is allowed? (a)if order of letters matters (b)if order of letters doesn't matter

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(#M40102982) EXAM Numerical Ability question Keep an EYE

(1)In how many ways can 2 letters be selected from set={a,b,c,d} when repitition of letters is allowed?
(a)if order of letters matters
(b)if order of letters doesn't matters

(

Asked In exam (9 years ago)

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