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17 Feb 2020, 02:01
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
59% (01:44) correct
41%
(01:39)
wrong
based on 138
sessions
History
Date
Time
Result
Not Attempted Yet
13 married couples attended a wedding ceremony, each woman gave a pack of chocolates to everyone except her spouse, and no exchange of gifts took place between men. How many gifts were exchanged among these people?
A. 78
B. 312
C. 325
D. 468
E. 624
Archit3110
Major Poster
17 Feb 2020, 03:30
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Bookmarks
total women ; 13 and men ; 13
gifts exchanged amongst women ; 13c2*2 ; 156
and gifts given by 13 women to 12 men ; 13*12 ; 156
total ; 156*2 ; 312
IMO B
13 married couples attended a wedding ceremony, each woman gave a pack of chocolates to everyone except her spouse, and no exchange of gifts took place between men. How many gifts were exchanged among these people?
A. 78
B. 312
C. 325
D. 468
E. 624
gifts exchanged amongst women ; 13c2*2 ; 156
and gifts given by 13 women to 12 men ; 13*12 ; 156
total ; 156*2 ; 312
IMO B
13 married couples attended a wedding ceremony, each woman gave a pack of chocolates to everyone except her spouse, and no exchange of gifts took place between men. How many gifts were exchanged among these people?
A. 78
B. 312
C. 325
D. 468
E. 624
17 Feb 2020, 03:51
Kudos
Bookmarks
Quote:
Total Couples = 13
Total Individuals = 2*13 = 26
Total Women = 13
One woman gives away = 26 - 2 (her spouse and herself) = 24 chocolates
Total chocolates given away by 13 women = 13*24 = 312
Answer: Option B
