Question
rank of the number 3241?(digits cannot be repeated)
Joshi sir comment
total numbers = 4*3*2*1 = 24
on arranging these numbers in order we get 1234
so rank = [24/4]*2+[6/3]*1+[2/2]*1+1 = 16
Read 1 Solution.
how did you mutliply with 2,1,1 in the solution..??
HARSHITH 12 year ago
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