(n-7)!/n!÷(n-8)!/n!=4 then the value of n is
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(n-7)!/n!*n!/(n-8)!=4
(n-7)!/(n-8)!=4
1/(n-8)=4
4(n-8)=0
4n-32=0
4n=32
n=8
The value of n is 8
(n-7)!/(n-8)!=4
1/(n-8)=4
4(n-8)=0
4n-32=0
4n=32
n=8
The value of n is 8
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by copying
there will be different levels e1 e2 e3 e4 e5
i am in e4 which is a very high level
they will give us 12th questions
how come the question paper is with you
we will bubble in omr sheet
after that they will us question paper
okay
what errors we make in the exam we have to write in a seperate book called error list
then u have to correct your mistakes, right
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