answer is option 1
how explain it
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hey
that's simple
that's permutation - whenever u want to find the ways in a system then use permutation method
for eg
3 children 4 seats
then 4p3. that means =4!/3!= 4×3!/3!
=4 ways
I hope u understand
that's simple
that's permutation - whenever u want to find the ways in a system then use permutation method
for eg
3 children 4 seats
then 4p3. that means =4!/3!= 4×3!/3!
=4 ways
I hope u understand
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