If it takes four men one day to build a wall, how long does it take
60,000 men to build a similar wall?
A garrison of 600 men has just enough bread ... but, with the news
that the enemy was planning an attack... How many ounces of bread a
day must each man in the garrison be allowed, to hold out 45 days
against the siege of the enemy?
Meg and Mo need to hang their marbles so that they balance. Use the
interactivity to experiment and find out what they need to do.