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26 May 2023, 01:30
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E
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Difficulty:
25%
(medium)
Question Stats:
81% (02:56) correct
19%
(02:26)
wrong
based on 52
sessions
History
Date
Time
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Not Attempted Yet
A special documentary show was attended by 240 students, who were either from class IV or from class V. Among all the students, the number of girls were 3 times the number of boys. Also, the number of students from class IV was twice the number of students from class V. If 7/16th of the students of class V were boys, then how many girls were there who were not from class V?
A. 25
B. 35
C. 45
D. 105
E. 135
A. 25
B. 35
C. 45
D. 105
E. 135
26 May 2023, 02:28
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240 students contain 180 Girls and 60 Boys.
240 students contain 160 Class 4 and 80 Class 5.
Class 5 contains 45 Girls and 35 Boys.
Hence Class 4 Contains 135 Girls.
Answer Option E.
240 students contain 160 Class 4 and 80 Class 5.
Class 5 contains 45 Girls and 35 Boys.
Hence Class 4 Contains 135 Girls.
Answer Option E.
Archit3110
26 May 2023, 02:48
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use 2x2 matrix
put in values as per given information we get below table
---IV----V-----Total
M--25---35---60
F--135--45----180
total--160--80---240
option E 135
put in values as per given information we get below table
---IV----V-----Total
M--25---35---60
F--135--45----180
total--160--80---240
option E 135
Bunuel
