# One third of a tank is filled with water. when another 100 litres of water was poured in ,it became half full. howmany litres can the tank hold in all?

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When ¹/₃ is full it means to say that it has ˣ/₃ litres of water

Now when 100 litres water was added it became half full

Note:- half full = ˣ/₂ litres and 100 litres water was added to it = ˣ/₃ +100 litres

∴

Therefore the tank can hold 600 litres of water...