Question

a cubical block of gold was melted and casted into 25 smaller cubes od edge 2.5cm what was the volume of the cubical block of gold

Answer 1

Given,
Edge of smaller cube= 2.5 cm
Number of cubes= 25
So,
Vol. of large cube= 25* Vol. of small cube
So,
Volume of small cube= (2.5)³
= 15.625 cm³
Now,
Volume of large cube= 25*15.625
= 390.625 cm³

Hope this helps you!