Question

1200 soldiers in the fort had enough food for 28 days. After 4 days, some soldiers were transferred to another fort and thus the food lasted now for 32 more days. How many soldiers left the fort.

Answer 1

Answer:

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Proportional method

As the number of soldiers increases, the number of days the food lasts, will decrease. So number N of soldiers is inversely proportional to the number D of days. Hence, there were only 900 soldier after 4 days. So 1200 - 900 = 300 soldiers are transferred