Question

A fort has enough drinking water for 600 soldiers for 30 days if after 10 days 200 soldiers leave the fort how long will the drinking water last now

Answer 1

600×10\400
6000\400
=15 days

Answer 2

Amount of soldiers that can be fed in one day=600/30
=20
Now for 10 days everyone are fed
Therefore
Amount of soldiers already fed=10*20
=200
Remaining soldiers =400
But out of these 400,200 soldiers leave
So Total soldiers now left=200
So now the amount of days it can last more
=Amount of soldiers left/Amount of soldiers that can be fed in one day
=200/20
=10 days
HOPE IT HELPS
MARK AS BRAINLIEST