# math

How many three-symbol codes can be formed from the letters I,S,P, and Y without repetition?

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3. 👁 40
1. 4*3*2 = 24

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posted by Jai
2. I S P

I S Y

I P S

I P Y

I Y S

I Y P

S I P

S I Y

S P I

S P Y

S Y I

S Y P

P I S

P I Y

P S I

P S Y

P Y I

P Y S

Y I S

Y I P

Y S I

Y S P

Y P I

Y P S

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