A vessel full of water weight 40kg if it is half filled it's weight is 30kg find the weight of empty vessel

Answer 1

Let's call the weight of the empty vessel "x" kg.

According to the given information, when the vessel is completely full, it weighs 40 kg.
When the vessel is half-filled, it weighs 30 kg.

This means that the weight of the water in the vessel is 40 kg - x kg = 10 kg.
Since the vessel is half-filled, the weight of the water is half of the weight when it is completely full, which means it is 10 kg.

So, 10 kg is the weight of the water in the vessel, which means that the weight of the empty vessel (x kg) is 30 kg - 10 kg = 20 kg.

Therefore, the weight of the empty vessel is 20 kg.