3. number of Students in a College in 2005 was Sto.
of these 480 were boys. In 2010 the number
of boys increased by 100l. and that of girls
increased by 300tl of that of 2005. In
2012 the total number of Students in the
College was 1200, the number of boys being
double the number of girls. Tabulate the
above information
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The total number of boys in school =1800
the total number of student =3200
therefore the total number of girls=3200−1800=1400
therefore the ratio of
boys
girls
=
1800
1400
ratio=7:9
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