Mrs Rajoo bought the same number of pens and pencils.  After she gave $$5$$ pencils to Ali, she had twice as many pens as pencils left.  She then bought another $$18$$ pens. How many pens did she have in the end? 
Overseas In-curriculum->Knowledge Point->Operations of Numbers ->Mixed Operations->Mixed Operations of Multiplication and Addition of Whole Numbers Overseas Competition->Knowledge Point->Counting Modules