a classy boy stands in a single line. one boy is nineteenth in order from both the ends. how many boys are there in the class ?
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he is the median of total students
so total students be n
n+1/2=19
n+1=19×2
n+1=38
n=38-1
n=37
so total students be n
n+1/2=19
n+1=19×2
n+1=38
n=38-1
n=37
priki:
that is right
yaa
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