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3 May, 11:21

What is the value of 7P3?

A.

21

B.

35

C.

210

D.

840

+5
Answers (2)
  1. 3 May, 11:53
    0
    P here signifies permutation. We just use the permutation formula to solve this problem. It is expressed as:

    nPr = n! / (n - r) !

    We calculate as follows:

    7P3 = 7! / (7-3) ! = 5040 / 24 = 210

    Therefore, the correct answer is option C, 210.
  2. 3 May, 12:31
    0
    7P3 = 7! / (7-3) ! = 7!/4! = (7 x 6 x 5 x 4!) / 4! = 7 x 6 x 5 = 210
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