Question

help me pls

Each side of a cube is decreased by 25%. Find the ratio of the volumes of the original cube and the resulting cube.

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Answer 1

Answer:

I think this will help you

Step-by-step explanation:

Let the side of cube = 10 cm

∴ Original volume = 10 × 10 × 10 = 1000 cm3

Now, side of new cube : = 10 - 25% of 10 = 7.5

∴ New volume = 7.5 × 7.5 × 7.5 = 421.875 cm3

∴ Required ratio :

=1000421.875=1000000421875=6427Or64:27

Answer 2

refer to the attachment...