is it because it is abcabc and prime are  2357 so selecting 4C3 3! arranging abc

is it because it is abcabc and prime are  2357 so selecting 4C3 3! arranging abc

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i didnt get this

i didnt get this

Basically , we need to arrange 4 number in 3 places & they are not distinct. So , we can arrange in 4*4*4 = 64 ways

ohkayy thanks got it

ohkayy thanks got it

here, i understood 4C3 and 3!= 24 selecting 3 and arranging them in 3! ways but why again 3! image.png 48.9 KB

here, i understood 4C3 and 3!= 24 selecting 3 and arranging them in 3! ways but why again 3! image.png 48.9 KB