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Forty percent of the students of a class are female. Fifty - percent students of the class have science background. If there are 40 students in the class and 6 male students have science background, how many female students Do Not have science background ?

A) 2
B) 4
C) 10
D) 14
E) 16

Sagot :

Luanaidn
[tex]40-all\ students\\40\%*40=0,4*40=16\ \ \ \ \ \ \ -number\ of\ female\\50\%*40=0,5*40=20\ \ \ \ \ \ \ -number\ of\ students\ with\ science\\background\\20-6=14\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -number\ of\ female\ with\ science\\ background\\16-14=2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -number\ of\ female\ without\ science\\background\\\\Answear\ is\ A[/tex]
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