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11 Jul 2019, 23:18
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
93% (01:04) correct
7%
(01:10)
wrong
based on 81
sessions
History
Date
Time
Result
Not Attempted Yet
At Deb’s Deli, a customer may choose either a sandwich and a salad or a sandwich and a soup for the lunch special. There are 5 choices of sandwich, 4 choices of salad, and 3 choices of soup. How many possible lunch special combinations can be ordered?
A. 15
B. 25
C. 30
D. 35
E. 70
A. 15
B. 25
C. 30
D. 35
E. 70
12 Jul 2019, 01:16
Kudos
Bookmarks
Bunuel
# of possible lunch special combinations =\(C^5_1 * C^4_1 + C^5_1 * C^3_1 = 5*4 + 5*3 = 20 + 15 = 35\)
IMO D
Archit3110
Major Poster
12 Jul 2019, 03:11
Kudos
Bookmarks
Bunuel
total options ;
5*4+5*3 ; 20+15;; 35
IMO D
