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if 55 % are girls
then 45 % are boys(100%-55%)
this implies.
boys %=no. of boys ÷total students ×100
45=1800÷X ×100
X=180000÷45
X=4000
This implies
girls %=no. of girls ÷total students×100
55=y÷4000×100
55×40=y
y=200
if 55 % are girls
then 45 % are boys(100%-55%)
this implies.
boys %=no. of boys ÷total students ×100
45=1800÷X ×100
X=180000÷45
X=4000
This implies
girls %=no. of girls ÷total students×100
55=y÷4000×100
55×40=y
y=200
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