solve 3rd one please
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volume of cyclinder jar= πr^2h
=22/7*7/2*7/2*20
=770cm^3
volume of cube=l^3
=5*5*5
=125cm^3
volume of water=πr^2h
=22/7*7/2*7/2*10
=385cm^3
volume of water after rising=volume of cube + volume of water
=385+125
=510cm^3
rise in water level=πr^2h
510 =22/7*7/2*7/2*h
h. =510*1/11*2/7
=13.24cm
hope it will help you
=22/7*7/2*7/2*20
=770cm^3
volume of cube=l^3
=5*5*5
=125cm^3
volume of water=πr^2h
=22/7*7/2*7/2*10
=385cm^3
volume of water after rising=volume of cube + volume of water
=385+125
=510cm^3
rise in water level=πr^2h
510 =22/7*7/2*7/2*h
h. =510*1/11*2/7
=13.24cm
hope it will help you
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