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13 Sep 2021, 02:23
Kudos
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
90% (00:41) correct
10%
(01:04)
wrong
based on 39
sessions
History
Date
Time
Result
Not Attempted Yet
If there are 6 more girls than boys in a room, and there are 14 boys and girls in the room, how many are girls?
A. 4
B. 5
C. 8
D. 10
E. 12
A. 4
B. 5
C. 8
D. 10
E. 12
14 Sep 2021, 22:06
Kudos
Bookmarks
Use backsolving and start from answer option C. We should check Girls - Boys = 6 in the options
C. 8 girls =>Number of boys =14-8 = 6 but this contradicts the condition; Girls - Boys = 6 eliminateC and thus A and B also which are smaller than C.
D. 10 girls=>Number of boys =14-10 = 4 and hence there are 6 more girls than boys.(answer choice)
(option d)
Alternately,
Let there be b boys and g girls.
b+ g =14
g-b = 6
=>g =6+b
b + 6 +b =14
=>b = 4 and g=10
(option d)
D.S
GMAT SME
C. 8 girls =>Number of boys =14-8 = 6 but this contradicts the condition; Girls - Boys = 6 eliminateC and thus A and B also which are smaller than C.
D. 10 girls=>Number of boys =14-10 = 4 and hence there are 6 more girls than boys.(answer choice)
(option d)
Alternately,
Let there be b boys and g girls.
b+ g =14
g-b = 6
=>g =6+b
b + 6 +b =14
=>b = 4 and g=10
(option d)
D.S
GMAT SME
