Archit3110 wrote:
Bunuel wrote:
A dessert chef prepares the dessert for every day of a week starting with Sunday. The dessert each day is either cake, pie, ice cream, or pudding. The same dessert may not be served two days in a row. There must be cake on Friday because of a birthday. How many different dessert menus for the week are possible?
(A) 729
(B) 972
(C) 1024
(D) 2187
(E) 2304
we will have 3 possibilities of dishes per day starting friday ;
total ; 3^6 ; 729
IMO A
Hi
Archit3110 ,
Why not start with Sunday where we will have 4 possibilities and go on like
Monday - 3 , Tue-3, Wed-3, Thu- 2( 3-1 because cake on friday) , friday- 1(cake) , and saturday - 3
Could you explain why is this approach wrong?
TIA