Question 967944
{{{ 9 }}} painters can paint {{{ 1 }}} house in {{{ 5 }}} hrs
------------------------------------------------
{{{ 1/9 }}} that number of painters will take {{{ 9 }}} times
as long to paint {{{ 1 }}} house, so
--------------------------------
{{{ 1 }}} painter can paint {{{ 1 }}} house in {{{ 45 }}} hrs
------------------------------------------------
It will take {{{ 15 }}} times as many painters to paint {{{ 1 }}} house
in {{{ 1/15 }}} of that time, so
-----------------------------------------------------------
{{{ 15 }}} painters can paint {{{ 1 }}} house is {{{ 3 }}} hrs