A carpenter makes $$15$$ wooden chairs on the first day. On the second day, he makes $$3$$ chairs more than the first day. On the third day, he makes $$3$$ chairs more than the second day. If the carpenter follows this pattern of making chairs, find the total number of chairs he can make in $$5$$ days.                          Ans:~\uline{~~~~~~~~~~}~[4] 
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