How many three – letter words can be formed using a, b, c, d, e if :
(i) repetition is allowed
(ii) repetition is not allowed?
Answers
Answered by
1
If repetition is not allowed
then the following word can be formed are
bad
bed
aid
die
ace
and If repetition is allowed
then following words can be formed
add
did
bee
then the following word can be formed are
bad
bed
aid
die
ace
and If repetition is allowed
then following words can be formed
add
did
bee
taani5mehta:
very good
thnx taani :)
u r welcome : D
Answered by
2
if repetition is allowed = 5*5*5 = 125
if repetition is not allowed = 5p3 = 5!/2! = 60
if repetition is not allowed = 5p3 = 5!/2! = 60
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