Question

Permutation

Answer 1

wht do u think

Answer 2

nPr=n!/(n-r)!
.
1) 6!/(6-3)!=6*5*4=120
.
2) 2/6 * 120 = 40

.
3) 2/6 * 120 = 40
.
4) 1/6 * 120 = 20

Answer 3

I do not understand the 2.)

Answer 4

looks there are 5 questions including the top most question ?

Answer 5

yes yes pls explain each question to me

Answer 6

did u understand the third one??