Question

there is a cubeof edge 7cm ,brim filled with water. when a small iron cube is dropped into it 27 ml of water comes out of it ,what is the edge length of small cube​

Answer 1

Answer:

volume of the small cube=27 ml=27 cu cm

edge length of the small cube is

cube root of 27 cu cm=3 cm

Answer 2

Given : A cube of edge 7cm brim filled with water

a small iron cube is dropped into it

27 ml of water comes out of it

To Find :  edge length of small cube​

Solution:

1 ml = 1 cm³

27 ml of water comes out of it

Hence Volume of small cube​ = 27 cm³

Volume of cube = (edge length )³

edge length of small cube​ = a cm

=> Volume of the small cube = a³  cm³

Equate with 27 cm³

=> a³ = 27  

=> a  = 3

Hence edge length of small cube​ is 3 cm

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