Question 1031142
Let {{{ x }}} = liters of pure fruit juice to be added
{{{ .1*2 = .2 }}} liters of pure juice in 10% mixture
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{{{ ( x + .2 ) / ( x + 2 ) = .25 }}}
{{{ x + .2 = .25*( x + 2 ) }}}
{{{ x + .2 = .25x + .5 }}}
{{{ .75x = .3 }}}
{{{ x = .4 }}}
.4 liters of pure fruit juice needs to be added
check:
{{{ ( x + .2 ) / ( x + 2 ) = .25 }}}
{{{ ( .4 + .2 ) / ( .4 + 2 ) = .25 }}}
{{{ .6 / 2.4 = .25 }}}
{{{ .6 = .25*2.4 }}}
{{{ .6 = .6 }}}
OK