Mr Toh bought $$2$$ similar books and $$3$$ similar magazines for $$ $24.90$$.  $$1$$ such book and $$1$$ such magazine cost a total of $$ $10$$.  How much did $$1$$ magazine cost? 
Overseas In-curriculum->Knowledge Point->Operations of Numbers ->Mixed Operations->Mixed Four Operations of Decimals Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Money