Martha had ＄$$1.50$$. She bought $$12$$ caramels at $$5$$￠ each. How many chocolate mints at $$10$$￠ each can she buy with the money she has left? 
Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Basic Profit and Loss Concepts
Martha had ＄$$1.50$$. She bought $$12$$ caramels at $$5$$￠ each, spengding  $$60$$￠ and leaving her with $$90$$￠. With $$90$$￠, she can buy $$90 \div 10 =9$$ mints at $$10$$￠ each. 