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kap26 [50]
3 years ago
12

There are 5 persons and at a time only 3 can be arranged. What is the total number of arrangements?

Mathematics
1 answer:
disa [49]3 years ago
7 0

Answer:

If there are 5 persons and at a time only 3 can be arranged, the total number of arrangements is 60

Option C is correct

Step-by-step explanation:

There are 5 persons and at a time only 3 can be arranged.

The total number of arrangements = nPr = n!/(n-r)!

Here n = 5 and r = 3

nPr = n!/(n-r)!

nPr = 5!(5-3)!

nPr = 5!/2!

nPr = 5*4*3*2!/2!

nPr = 5*4*3

nPr = 60

So, if there are 5 persons and at a time only 3 can be arranged, the total number of arrangements is 60

Option C is correct.

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Please write step by step of how you got the answer. Thankyou
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Answer:

The solution in the attached figure

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step 1

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step 2

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step 3

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The solution in the attached figure

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