Question

1200 soldiers in a 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 ? 

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Solution

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Correct option is
A

300

It is given that after days, out of days, the fort had enough food for soldiers for days.
Let be the number of soldiers who left the fort.
Number of soldiers   
Number of days for which food lasts    
Since, the number of soldiers and the number of days for which the food lasts are in inverse variation, we have :
 

 

 

 

 

  The soldiers which left the fort are .

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