a rectangular block of ice measures 40 cm by 25 CM by 15 CM calculate its weight in kg if it is 9 by 10 of the weight of the same volume of water and 1 centimetre cube of water is 1 gram
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Answered by
36
Solution :
Dimensions of the rectangular ice
block :
Length ( L ) = 40cm
Breadth ( B ) = 25 cm ,
Height ( H ) = 15 cm
Volume of the ice block ( V ) = LBH
= 40cm × 25 cm × 15 cm
= 15000cm³
It is given that,
1 cm³ ice block volume =
( 9/10 ) cm³ water volume
15000 cm³ ice block
volume = [15000cm³ × ( 9/10 ) cm³ ]/1cm³
[ Unitary method ]
= 15000 × 0.9 cm³
= 13.5 × 1000 cm³
= 13.5 × 1000 g
[ 1 cm³ = 1 g ]
= 13.5 kg
••••
Dimensions of the rectangular ice
block :
Length ( L ) = 40cm
Breadth ( B ) = 25 cm ,
Height ( H ) = 15 cm
Volume of the ice block ( V ) = LBH
= 40cm × 25 cm × 15 cm
= 15000cm³
It is given that,
1 cm³ ice block volume =
( 9/10 ) cm³ water volume
15000 cm³ ice block
volume = [15000cm³ × ( 9/10 ) cm³ ]/1cm³
[ Unitary method ]
= 15000 × 0.9 cm³
= 13.5 × 1000 cm³
= 13.5 × 1000 g
[ 1 cm³ = 1 g ]
= 13.5 kg
••••
mysticd:
wait for somebody gives a new answer
no ni
i am satisfied
hey @mysticd
@IITGenius has asked a doubt that how do you know that 1 cm³ of ice is there?
jj
thanks knowmore for sharing my doubt lol
Read the question carefully , and understand it .
ok and thanms
ok and thanks
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