Question 984744
{{{ s = 3v }}}
{{{ s < 10 }}}
{{{ v < 10 }}}
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Sofia is 1, 3, 5, 7, or 9
Their ages differ by a whole number since
they have the same birthday
{{{ v = s/3 }}}
{{{ s = 3  }}} or {{{ s = 9 }}}
either:
{{{ v = 3/3 }}}
{{{ v = 1 }}}
or
{{{ v = 9/3 }}}
{{{ v = 3 }}}
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The answer would be (B) 3 yrs