a beginner learning swimming uses an inflated rubber tube.give reason.

BECAUSE WHEN WE USE INFLATED RUBBER TUBE WE FLOAT ON WATER AS RUBBER FLOAT ON WATER SO WHILE SWIMMING MOST OF THE PEOPLE USE THIS METHOD
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The above answer is actually WRONG . Beginners use inflated rubber tubes as the air inside the tube reduces the relative density of the tube as a whole keeping it above water and thus , keeping the wearer afloat .

P.S - believe me when I say this as I have actually tried staying afloat without the air inside !
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Hii
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