Question

If nPr : nCr = 126 then find n and r​

Answer 1

Step-by-step explanation:

f nPr : nCr = 126 then find n and r

Answer 2

Answer:

r=5.

Step-by-step explanation:

nPr

=n!/(n-r)!

nCr

=

n!/[r!(n-r)!]

Given nPr : nCr = 120

r!= 120

r=5

we cannot find n Here

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