Perms and Comb (1 Viewer)

[cutemouse]

I suck at this topic

Consider a pack of 50 playing cards consisting of 5 colours Red, Blue, Green, Yellow and Orange, with cards numbered from 1 to 10 for each colour.

(a) If six cards are dealt at random from the pack find the number of ways of obtaining four 9's and two eights.

(b) If six cards are dealt at random from the pack find the number of ways of obtaining four cards of the same number and two cards of a different number.

Thanks

 

[fullonoob]

I suck at this topic

Consider a pack of 50 playing cards consisting of 5 colours Red, Blue, Green, Yellow and Orange, with cards numbered from 1 to 10 for each colour.

(a) If six cards are dealt at random from the pack find the number of ways of obtaining four 9's and two eights.

(b) If six cards are dealt at random from the pack find the number of ways of obtaining four cards of the same number and two cards of a different number.

Thanks

farr this topic i forgot
a) 5P4 + 5P2 = 120 + 20 = 140??
LOL THATS MY GUESS XDDD
Lets wait for a pro to do it.