Question 621321
Let {{{b}}} = number of boys
Let {{{g}}} = number of girls
given:
{{{ b/g = 2/5 }}}
{{{ g = 120 }}}
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{{{ 5b = 2g }}}
{{{ b = (2g)/5 }}}
{{{ b = (2*120)/5 }}}
{{{ b = 48 }}}
There are 48 boys
check:
{{{ b/g = 48/120 }}}
{{{ 2/5 = 48/120 }}}
{{{ 2*24 = 48 }}}
{{{ 48 = 48 }}}
OK