Permutations and Combinations-Meaning of P (N,R) and C (N,R) (BITSAT Mathematics): Questions 1 - 1 of 1

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Question number: 1

» Permutations and Combinations » Meaning of P (N,R) and C (N,R)

MCQ▾

Question

If (nPr)=720(nCr) , then value of r is –

Choices

Choice (4) Response
a.

7

b.

4

c.

5

d.

6

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