[P6] Problem Sum No. 8: Muffins in Boxes

Ali sold muffins in boxes of threes and fours. At first he had 5 times as many small boxes as big boxes. After selling 2/5 of the small boxes and some big boxes, he packed another 12 more big boxes. As a result the number of unsold small boxes became twice the number of unsold big boxes. If the total of unsold muffins was 150 how many big boxes did he sell? Asked by wife’s colleague, Lilian Date: 18...

Practical Steps for Problem Sum Solving with Models

Tackling problem sums using models can be a hazardous affair for the uninitiated. Some people are put off by those usually wordy Math questions, which seem to be one hurdle to applying models. Here, a poor command of English can trip up the student trying to understand what is being asked. How to picture the problem and draw the correct model diagram seems to be another hurdle. Failure to pick an appropriate model++ means relationships between items given in...