A ball is floating in a liquid in a container with its 25% of volume outside the liquid. If the air of the container is pumped out then what % of volume of ball will be outside the liquid?
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Solution
If we pump out the air, the volume of the container will not change but weight will be reduced. So we need to displace less volume of liquid to support the container. So volume out side the liquid will increase. Hence it will be greater than 25%.